Question # 1

The magnitude of displacement is

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Distance between the two points

Distance in a curved path

Shortest distance between two points

None of these

The typical speed of Moon around the Earth is

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1000 ms^-1

2000 ms^-1

3000 ms^-1

4000 ms^-1

One degree of thermodynamics scale of temperature is called:

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Celsius

Fahrenheit

Kelvin

Radian

If stress is increased beyond the elastic limit a permanent change in the material is observed This behavior is called

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Elastic deformation

Elasticity

Plasticity

Yield strength

Which of the Following bulb will glow Brightest?

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100W

200W

300W

400W

Identify practical use of superconductor

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MRI

Super computer

Magnetic levitation train

All above

cream gets separated out of milk when it is churned it is due to

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Gravitational force

Centripetal force

Centrifugal force

Resistance

The escape velocity of moon in Kms^-1 is

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1.23

2.43

2.40

2.59

In digital modulation, the LED or laser flashed on and off at a

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Fast rate

Very fast rate

Extremely fast rate

None of these

What quantity produces the angular acceleration in body

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Momentum

Inertia

Moment of inertia

Torque

When observed by transmitted light, the central band of newton's ring system consists of:

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Bright circular ring

Dark circular ring

May be bright or dark circular ring

No interference bands

The changes which involve friction or dissipation of energy are reversible through

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Conduction

Convection

Radiation

All of these

Aerodynamics is a branch of physics deals with the

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Thermodynamics

Hydrodynamics

Dynamics

None of these

Which of the following is not conservative force

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Electric

Gravitational

Elastic spring force

None

The speed of light in vacuum is 3 x 10⁸ ms^-1.Its speed in a medium of refractive index 1.5 will be

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6.5 x 10⁸

2 x 10⁸ ms^-1

4.5 x 10⁸ cm

5.5 x 10⁸

The typical speed of Moon around the Earth is

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1000 ms^-1

2000 ms^-1

3000 ms^-1

4000 ms^-1

The approximate efficiency of solid state laser is

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35%

30%

27%

23%

Consider a spherical shell of metal at he centre of which a positive point charge is kept

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The electric field is zero outside the shell

The electric field is zero everywhere

The electric field is zero in the region inside the shell

The electric field is non-zero in both regions outside and inside the shell

In SI system the correct unit of Planck's constant is

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Kelvin

Js

Lux

Candela

A capacitor is charged with a battery and then it is disconnected A slab of dielectric is now inserted between the plates then

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The charge in the plates reduces and potential difference increase

Potential difference between the plates increases stored energy decreases and charge remains the same

Potential difference between the plates decreases,stored energy decreases and charge remains unchanged

None of the above

Two wires of same material have lengths L and 2L and cross-sectional area 4A and A respectively. the ratio of their specific resistance would be:

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1: 1

1: 8

8: 1

1: 2

A mass of 5 kg moves with an acceleration of 10m s^-2, the force applied is

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10N

50N

2N

20N

At the point of contact of the lens and the glass plate, the Newton's ring is

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dark

bright

either of them

neither of them

The photoelectric effect was explained by:

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Einstein

Davison

Hertz

Planck

An automobile moves with constant speed along a circle of radius 40 m. It takes 2 μ second to complete one circle,The average speed for one complete circle is

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20 ms^-1

40 ms^-1

60 ms^-1

0 ms^-1

The speed of light in a medium depends upon

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Its wavelength

Its frequency

Refractive index

All of these

The time taken by light for its passage from M to m and back is

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2c/d

d/2c

2d/c

d²/2c

A component of a vector has its

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Normal value

Effective value

Given direction

b and c

High energy physics is the physics of

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Nucleus

Subatomic particles

Plasma physics

Astrophysics

The work by the body is maximum when it has angle

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30^o

60^o

90^o

0^o

A charge of 10 C is moved along an equipotential surface having a potential of 2V. The work done is

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10 j

Zero

2 j

20 j

Stree is _________ property of solids

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Electrical

Polymeric

Conductive

Mechanical

Solids which have no regular atomic structure are called

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Crystalline solid

elastic solid

Glassy solid

All of these

A radioactive isotope 𝟐𝟑𝟖 𝑼 decays consecutively to 𝟐𝟑𝟒 𝑼 the particles emitted are:

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One 𝛼 and one 𝛽

Two 𝛼 and one 𝛽

e 𝛼 and two 𝛽

Two 𝛼 and two 𝛽

If the instant velocity does not change, the body is moving with a

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Initial velocity

Variable velocity

Uniform velocity

None of these

The ratio of the numerical values of the average velocity and average speed of a body is always.

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Unity

Unity or less

Unity or more

Less than unity

Which mode can carry more than 14 TV channels or 14000 phone cells?

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single mod step index

multimode step index

multimode graded index

all of them

Young's modulus for mercury is

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0

2

5

6

Thermodynamics is the branch of physics deals with the conversion of heat energy into

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Electrical energy

Mechanical energy

Solar energy

None of these

In a astronomical telescope the final image for normal vision is formed at

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The focal of the eye piece

The least distance of the distinct vision

The focus of the objective lens

Infinity

If the earth were to stop rotating, the value of 'g', the acceleration during to gravity at Delhi

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Increases

Decreases

Remains unchanged

Becomes zero

In an inkjet printer, the toner drops are

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Charged

Not charged

Charged and deflected

None of these

The solids are classified as:

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Metals

Crystalline

Amorphous

Polymeric

All expect A

In photoelectric effect, if we increase the frequency of the incident light then of the electrons increased

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Number

K.E

P.E

Frequency

The temperature of sun is measured with

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Platinum thermometer

Gas thermometer

Vapour pressure thermometer

Pyrometer

The whole structure obtained by the repetition of unit cells is called:

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Crystal lattice

Amorphous solid

Polymeric solid

Polystrene

None of these

If a particle covers half the circle of radius R with constant speed then

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Momentum change is mvr

Change in KE is 1/2 mv²

Change in KE is mv²

Change in KE is zero

If tube length of astronomical telescope is 105 cm and magnifying power is 20 for normal setting calculate the focal length of objective

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100 cm

10 cm

20 cm

25 cm

The band above the valence band is called

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high energy band

conduction band

empty band

none of them

The bonding between the semi-conductor materials is

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covalent

ionic

either of them

none of them

Most widely used optical fibres are those which propagate light by

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total interval reflection

continuous refraction

both of them

none of them

If the water falls from a dam into a turbine wheel 19.6 m below,then the velocity of water at the turbine is

(Take g = 9.8 m/s²)

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9.8 m/s

19.6 m/s

39.2 m/s

98.0 m/s

The coordinate axes are those in which lines are drawn

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Parallel

Perpendicular

At right angle

All of them

The conduction of electrons takes place and conduct electric current through solids is a

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Energy band

Conduction band

Valence band

Completely filled band

Stress may cause a change in:

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Length

Volume

Shape

Any of these

None of these

Frequency of red colour as compared to that of violet colour is:

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Equal

Smaller

Greater

None of these

A body is said to be in a state of complete equilibrium if

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Its translational accelerationis zero

Its rotational acceleration is zero

its rotational as well as translational acceleration is zero

its angular momentum is zero

At what point/points in its path does a projectile have its maximum speed ?

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At the point of projection

At the point where its strikes the ground

Both

None of these

In super conductors, once the current is established it exists

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1 day

30 days

indefinitely

None of these

If a source of light is moving away from stationary observer then frequency of light wave appears to change because of

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Doppler's effect

Interference

Diffraction

None of the above

A force of 10 N displace an object by 10 m.If work done is 50 J then direction of force makes an angle with direction of displacement.

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120°

90°

60°

None of these

A typical rocket ejects the burnt gases at speeds of over

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4000 ms^-1

5000 ms^-1

6000 ms^-1

None of these

Elastic deformation of a material is the deformation which is

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Permanent

Temporary

Some what permanent

None of these

If the cover of a red book is observed in monochromatic blue light,It will appear

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White

Red

Black

Blue

Rectangular components of a vector are those which have angle between them

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30^o

60^o

90^o

0^o

The intensity of the earth's gravitational field is maximum at

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The centre of the earth

The equator

The poles

None of the above

A diffraction grating contains 5000 lines per centimeter, its grating element will be

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1 x 10^-4nm

1 x 10^-14m

1 x 10^-14cm

1 x 10^-4cm

Earth receivers huge amount of energy directly from

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Water

Moon

Sun

None of these

A substance which have empty conduction band is called

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Conductor

Insulator

Semiconductor

None of these

The contrast in the fringes in any interference pattern depends on

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Frings width

Intensity ratio of the sources

Distance between the slits

Wavelength

If the potential difference across the two plates of a capacitor is double, then its energy stored in will be

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2 times

5 times

4 times

Remains the same

Calculate the critical angle when core refractive index is 1.50 and cladding of refractive index 1.48

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70.3^o

80.9^o

80.6^o

89.6^o

Such a surface on which all the points have the same phase of vibration is known as

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wavefront

amplitude

displacement

all of them

The symbol for radian is

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rad

Rad

rd

rdn

The dimensions of Planck's constant is equal to that of

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Energy

Momentum

Angular momentum

Power

A body of mass 5 kg is moving with a momentum of 10 kg m/s.A force of 0.2 N acts on it in the direction of motion of the body for 10 seconds.The increase in its kinetic energy is

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2.8 Joule

3.2 Joule

3.8 Joule

4.4 Joule

The lowlying Earth satellites have acceleration

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9.7 ms^-2

9.9 ms^-2

10.0 ms^-2

9.8 ms^-2

The direction of the linear momentum is the direction of

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speed

velocity

weight

none of them

How large a force is required to accelerate a body of weight 5 N with 4 ms^-2 is

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10 N

5 N

2 N

1 N

The equations for uniformly accelerated motion can also be applied to free fall motion of the objects by putting

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V_f= 0

Simple 'a'

a by g

None of these

The unit of thermodynamics scale is

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C°

K

F°

All of these

What is the radial acceleration, when a space ship is accelerating towards the centre of the Earth at all times is

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2 g

g

1/2 g

1/4 g

Diffraction of light occurs, due to the interference between rays coming from the same wavefront of

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The same parts

The different parts

Mixed rays

None of these

Repeaters are the devices which regenerate the signals and are placed at about

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20 km

30 km

40 km

50 km

Stokes law is applicable to

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Very fast moving objects only

Arbitrary shape bodies

Slow moving objects having spherical shapes

All of these

The food which we eat in three days produces energy equal to energy from ____ liter of petrol

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1

1/3

3

9

When m₁and m₂and V₂= 0 then velocities become

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V'₁= 0 and V'₂= V₁

V'₂= 0 and V₁= V'₁

V₁= 0 and V'₁= V₂

None of these

In photoelectric effect, electrons are emitted with:

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Same energy

Different energies

Both (a) & (b)

Intermittent energies

Acceleration of a body is positive, if the velocity of the body is

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constant

increasing

decreasing

none of them

The power output of a full wave rectifier is:

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Equal to H.W.R

Twice of H.W.R

Half of H.W.R

Four times of H.W.R

Correction factor can be applied to

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Personal error

Systematic error

Random error

All

Wave length of red colour as compared to that of violet colour is:

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Smaller

Longer

Equal

None of these

The capacity of a parallel plat capacitor depends on the

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Type of metal used

Thickness of plates

Potential applied across the plates

Separation between the plates

Radian is the unit of angular displacement which is

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Less than degree

Greater than degree

Equal

None of these

The sky appears blue because

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Red light is absorbed

Blue light is scattered the most

Blue light is absorbed

It is its natural color

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Equation of continuity

Bernoulli's theorem

Toricelli's theorem

None of these

The value of coefficient of viscosity in comparison to coefficient of friction is

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Very large

Very small

Nearly same

May be small or large

Polymers have chemically combinations with

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Carbon

Nitrogen

Hydrogen

All of them

The unit of Stefan Boltzman constant σ is:

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W/mK⁴

Cal/m³K²

W/m²K⁴

K/m²K⁴

Which type of optical fiber has the largest diameter

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Single mode step index fiber

Multi-mode step index fiber

Multi-mode graded index fiber

None of these

Plane polarized light can be produced by:

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Simple reflection

Refraction

Selective absorption

All of these

If the water exists from the pipe at the rate 1.5 kgs^-1at speed of 0.3 ms^-1. If the water strikes a wall normally, find the force on the wall is

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5.53 N

5.03 N

1.35 N

0.45 N

The correct unit of Kinematic viscosity in SI system is

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ra(D) s^-2

m².s^-1

g.s^-2

N .sm^-2

Radius of planet A is twice that of planet B and the density of A is one third that of B. the ratio of the acceleration due to gravity at the surface of A to that at the surface of B is

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2 : 3

3 : 2

3 : 4

4 : 3

Semi-conductor elements have atoms with

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2 valence electrons

3 valence electrons

4 valence electrons

5 valence electrons

A bomb of mass 9 kg explodes into two pieces of mass 3 kg and 6 kg.The velocity of mass 3 kg is16 ms^-1,K.E of mass 6 kg is

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96 j

192 j

384 j

768 j

The fringe spacing in case of red light

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Increases

Decreases

Remains the same

None of these

The area of hysteresis loop is an indication of the

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Permeability of the material

Susceptibility of the material

Retentivity of the material

Energy dissipated per cycle

Pressure may be defined as_____per second per unit area:

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Change in force

Change in momentum

Change in energy

Work done

Bulk modulus is involved when the deformation is:

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One dimentional

Two dimentional

Three dimentional

Any of these

None of these

The SI unit of momentum is

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Kgms^-1

Kgms^-2

NS

A and C

Let a ray of light enters from air into two media of different refractive indices. The speed of light will be ______ to refractive index

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Directly proportional

Inversely proportional

Sometimes inversely

Equal

Which of the following quantities has not been expressed in proper units?

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Stress/Strain= Newton/metre²

Surface tension = Newton/metre

Energy = kg m/s

Pressure = newton/metre²

If no external torques act, the angular momentum of a body rotating about a fixed axis in two dimensions is

Choose an answer

Variables

Constant

Non conserved

None

Unit of solid angle is

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Radian

Degree

Steradian

Revolution

A mode of propagation of light through optical fibre in which the light within the fibre is

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Reflected

Refracted

Continuously refracted

None of these

Physics deals with the study of

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Matter and Energy

Outer atmosphere

Matter and Energy and their relationship

None of these

Basic principle of an optical fibre is

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Reflection

Scattering

Polarization

Total internal reflection

For the sustained interference of light the necessary condition is that the two sources should

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Have constant phase difference

Be narrow

Be close to each other

Of same amplitude

With the propagation of longitudinal waves through a material medium, the quantitiestransferred in the direction of propagation are:

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Energy, momentum and mass

Energy and momentum

Energy and mass

Energy

Michelson's interferometer is an instrument that is capable of measuring distance with

Choose an answer

low precision

high precision

extremely high precision

extremely low precision

Thick tar and honey have

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Small coefficient of viscosities

Large coefficient of viscosities

Zero coefficient of viscosities

Moderate coefficient of viscosities

The critical temperature T for is

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1.6 K

2.71 K

3.72 K

2.82 K

A 100W, 220V bulb is operated on a 110V line, the power consumed is:

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25W

75W

50W

100W

The magnification of a simple microscope of focal length 5cm is

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3

5

6

20

The fractional effect between layers of following fluid is

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Viscosity of fluid

Velocity of fluid

Acceleration of fluid

Pressure of fluid

If a body is moving with uniform velocity, then it is said to be in

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torque

equilibrium

dynamic equilibrium

static equilibrium

A special alloy called Alnico is known as

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Soft magnetic material

Hard magnetic material

In between soft and hand magnetic material

None of these

In a semi-conductor material, the total current is

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only the +ve current

only the electronic current

sum of +ve and electronic current

all of them

The quantity of motion of the body is called

Choose an answer

Force

Acceleration

Momentum

None of these

At some places hot igneous rocks usually within the Earth surface of

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2 km

8 km

10 km

20 km

The blood pressure of about 120 torr is called the

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Diastolic pressure

Systolic pressure

Minimum diastolic pressure

Dangerous blood pressure

Which of the following phenomenon is not application of Bernoulli s equation

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Swing in cricket ball

Flying of airplane

Working of carbonator

Beats

When a body moves with a constant speed along a circle

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No work is done on it

No acceleration is produced in the body

No force acts on the body

Its velocity remains constant

The velocity of flow of a liquid through an orifice at the bottom of a tank depends upon the

Choose an answer

Density of liquid

Cross sectional area of orifice

Height of liquid above the orifice

None of there

The frame of reference in which Newton first law of motion holds is known as

Choose an answer

Inertial frame of reference

Non-Inertial frame of reference

Every frame of reference

None of these

In the phenomenon of interference, the bright and dark fringes are of

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Different width

Equal width

Dark fringes are thicker than bright

Nona of these

Time between the normal heart beats is

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8 × 10^-1 sec

_{8 × 10}^-2_sec

8 × 10^-3 sec

None of these

The speed of running cheetah is

Choose an answer

15 ms^-1

23 ms^-1

26 ms^-1

29 ms^-1

In an isothermal process, the change is internal energy is

Choose an answer

Maximum

Zero

Very small

None of these

The volume of liquid flowing per second out of an orifice at the bottom of a tank does not depend upon

Choose an answer

The area of the orifice

The height of liquid above the orifice

The density of liquid

Both A and C

Velocity is a physical quantity which is

Choose an answer

Scalar quantity

Vector quantity

Variable quantity

None of these

A book is lying on the table What is the angle between the action of the book and the reaction of the table on the book

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0°

180°

30°

90°

The work done in placing a charge of 8 x 10^-18C on a condenser of capacity 100 μ F is

Choose an answer

32 x 10^-32 j

16 x 10^-32j

3.1 x 10^-26j

4 x 10^-10j

The percentage uncertainty in measuring the volume of sphere measured by calipers callipers is when r = 2.25 ± 0.01 cm with least count ± 0.01 cm

Choose an answer

46.7 ± 0.5 cm²

47.7 ± 0.5 cm³

47.7 ± 0.6 cm³

477.6 ± 0.6 cm³

If a light of λ = 588 nm falls on half silvered glass plate in Michelson s interferometer if movable mirror is moved through 0.233 mm the number of fringes will be observed to shift

Choose an answer

795

792

786

None

In superconductors, the resistance of a material drops to zero and no

Choose an answer

Power is dissipated

Energy is dissipated

Current is dissipated

None of these

On heating, glass gradually softens into a paste-like state before it becomes a very viscous liquid at almost

Choose an answer

600°C

7600°C

800°C

900°C

The light form Sun reaches earth in the form of

Choose an answer

plane wavefront

circular wavefront

spherical wavefront

elliptical wavefront

Two forces 3 N and 2 N are at an angle 0 such that the resultant is R.The first force is now increased to 6 N and the resultant becomes 2R.The value of θ is

Choose an answer

30°

60°

90°

120°

When torque acting upon a system is zero which of the following will be constant?

Choose an answer

Force

Linear momentum

Linear impluse

None of these

At the top of the trajectory of a projectile,the acceleration is

Choose an answer

The maximum

The minimum

Zero

g

The mass of electrons in Me V is

Choose an answer

1.02 Mev/C²

0.51 Mev/C²

51 Mev/C²

102 Mev/C²

In which of the following, Doppler’s effect is not applicable?

Choose an answer

To find speed of satellite

To find objects under water

To find speed of star

To tune a musical instrument

The unit Compton wavelength is same as:

Choose an answer

Compton wavelength

Compton frequency

Compton shift

Both (a) & (b)

Newtons second law gives the measures of

Choose an answer

Acceleration

Force

Momentum

Angular momentum

Choose an answer

Electromagnetic waves from a source were found to be significantly diffracted when passing through gaps of the order of 10 m. What type of waves are they likely to be?

Choose an answer

gamma waves

light waves

microwaves

radiowaves

To get p-type semiconductor we add impurity from

Choose an answer

3^rd group

4^th group

5^th group

6^th group

The bands below the valence band are

Choose an answer

completely filled and play active part in conduction process

completely filled and plays no part in conduction process

not completely filled and play active part in conduction process

not completely filled and play no part in conduction process

A cylinder cannot roll on

Choose an answer

A rough horizontal plane

A smooth horizontal plane

A rough inclined plane

A smooth inclined plane

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Choose an answer

a rocket

an aeroplane

a projectile

a balloon

Change in momentum per second is:

Choose an answer

Product force and time

Product of pressure and area

Ratio of pressure and area

None of these

The efficiency of carnot's engine can never be 1 or 100% unless cold reservoir is

Choose an answer

100 K

1 K°

0 K°

None of these

Which electromagnetic wave would cause the most significant diffraction effect for an atomic lattice of spacing around 10^-10m?

Choose an answer

microwave

infrared

ultraviolet

X-ray

Can a vector have a component greater than the vectors magnitude ?

Choose an answer

yes

No

yes in some cases

None of these

The torque is taken as positive when it is

Choose an answer

Clockwise

Anticlockwise

Both

None of these

In Michelsion's interferometer the path difference is varied by moving

Choose an answer

compensatory plate

moveable mirror

fixed mirror

telescope

The time rate of change of displacement is called

Choose an answer

Speed

Velocity

Acceleration

None of these

The half-life of a certain element is 3.5 days at STP. If the temperature is doubled and pressure is reduced to half then half-life of the same element will be:

Choose an answer

1.75 days

3.5 days

7 days

14 days

If the moveable mirror in Michelsion's interferometer moves a distanceλ/2, the path difference changes by

Choose an answer

λ/4

λ/2

λ

3/2λ

The dimensions of work are

Choose an answer

[MLT^-2]

[ML²T^-1]

[ML²T²]

[ML²T^-2]

Angular momentum has the same unit as

Choose an answer

Impulse x distance

Linear momentum x time

Work x frequency

Power x time

If the water exists from the pipe at the rate 1.5 kgs^-1 at speed of 0.3 ms^-1. If the water strikes a wall normally, find the force on the wall is

Choose an answer

5.53 N

5.03 N

1.35 N

0.45 N

As isolated system in which

Choose an answer

No internal force acts

No external force acts

No internal and no external force acts

None of these

Powered and remote control guided missiles are used for

Choose an answer

long ranges

short ranges

medium ranges

none of them

The renewable energy source is

Choose an answer

Natural gas

Biomass

Tide3s

None of these

Fractional error in a measured quantity is determined by

Choose an answer

Measured value / Absolute error

Absolute error / Measured value

Measured value + Absolute error

Measured value - Absolute error

The metals become electrically conducting due to their

Choose an answer

Ductility

Hardness

Structure

All of them

The minute hand of a large clock is 3.0 m long. What is its mean angular speed

Choose an answer

1.4 x 10^-4 rad s^-1

1.7 x 10^-3 rad s^-1

5.2 x 10^-3 rad s^-1

1.0 x 10^-1 rad s^-1

According to Huygen's principle, every point of a wavefront may be considered as a source of

Choose an answer

primary wavelets

secondary wavelets

either of them

both of them

The magnitude of torque determines its

Choose an answer

Linear acceleration

Angular acceleration

Moment arm

None of these

If we increase the distance between two plates of the capacitor the capacitance will

Choose an answer

Increase

Decrease

Remain same

First increase then decrease

Impulse is the force applied for a very short interval time in which force is

Choose an answer

Constant

Not constant

May be constant for some time

None of these

Viscosity is the property by virtue of which a liquid

Choose an answer

Becomes spherical in shape

Occupies minimum surface area

Oppose relative motion between layers

Tends to regain its deformed position

The direction of velocity is along the direction of

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Motion

Displacement

Velocity

None of these

In Multimode step index fibre the refractive index from its centre to the boundary is

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1

1.55

1.52

1.43

The cross product of two perpendicular vectors has magnitude

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Maximum value

Minimum value

Zero

None of these

When a movable mirror moves λ/4 distance and the light used is 400 nm, then the distance measured highly precise is

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100 nm

10^-4 nm

10^-6 nm

10^-5 mm

When the density is constant for the steady flow of incompressible fluid equation of continuity becomes

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ρ₁A₁V₁ = ρ₂A₂V₂

ρ₁m₁A₁V₁ = ρ₁m₁A₂V₂

A₁V₁ = A₂V₂

None of these

Inertial frame of references are those frame of references which are moving with

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increasing velocity

decreasing velocity

constant velocity

all of them

There is a certain frequency below which no electrons are emitted from the metal surface, this frequency is known as:

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Critical frequency

Threshold frequency

Maximum frequency

Minimum frequency

For which position will be maximum blood pressure in a body have the smallest value

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Standing upright

Sitting relaxed

Lying horizontally

Standing on one's head

Truth of kinetic energy theory is confirmed by:

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Diffusion of gases

Brownian motion

Both A and B

None of these

The property of light which does not change with the nature of the medium is:

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Frequency

Amplitude

Wavelength

None of these

When monochromatic light is incident, making certain angle, on a thin parallel film, the interference fringes formed are

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straight

circular

square

plane

The SI unit of momentum is

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Kgms^-1

Kgms^-2

N.S

a and c

Charles Coulomb measured the force between two charges in

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1860 AD

1890 AD

1874 AD

1871 AD

Which of the following colors will have minimum critical angle when light passes from glass to air

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Red

Blue

yellow

Orange

The product of pressure P and volume V of an ideal gas is

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Constant

Approximately equal to the universal gas constant

Directly proportional to its temperature

Inversely proportional to its temperature

The percentage errors in the measurements of mass and speed are 2% and 3% respectively.How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed.

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11%

8%

5%

1%