Question # 1

If a body does not change its position with respect to some fixed point, then it will be in a state of.

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Motion

Uniform motion

Rest

Variable motion

Physics is one of the branches of.

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Life science

Social science

Biological sciences

Physical sciecnes

Materials which does not regain its original hape after remvoal of the load producing deformationare termed as.

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Rigid materials

Hook's materials

Plastic materials

Elastic materials

When a hanging carpet is beaten by stick Dust flies off the carpet It is mainly due to.

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Action force on carpet

Inertia of dust

Reaction force by carpet

Rate of change of momentum of carpet

SI unti of linear momentum is

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kgm-1 s-1

kg m s-1

kg m2 s-1

Nm

The force which moves the car is

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Force of friction between road tyre

Force developed by engine

Uniform velocity

Water split on the road

Motion of a screw of rotating fan is

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Circular Motion

Vibratory motion

Rotatory motion

Random Motion

A particle of mass m moving with a velocity v collides with another particle of the same mass at rest. The velocity of the first particle after collision is.

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0

v

-p

- 1/2

Which of the following is a base unit.

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Mole

Pascal

Coulomb

meter per second

A man walks on a tight rope. He balances hiself by holding a bamboo stick horizontally, It is an application of

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Law of conseration of momentum

Principle of momentums

Newton's third law of motion

News' second law of motion

The reason that a car movint on a horizontal road gets thrown out of the road while taking a turn is.

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The reaction of ground

Rolling friction between tyre and road

Lack of sufficient centriptal force

Gravitational force

Mathematical formula of electromotive force (e.m.f) is:

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E = W/Q

E = Q/W

E = WQ

E = W2Q

The speed of sound is air at 21 ^oC is:

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336 ms^-1

343 ms^-1

430 ms^-1

470 ms^-1

The refractive index of ice is:

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1.00

1.33

1.31

2.42

isotopes are atom of same element with different.

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Atomic mass

Atomic number

Number of proton

Number of electron

At mean position of pendulum, the potential energy of the pendulum is:

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Maximum

Minimum

Much more

Both a and c

If one of the resistors in a parallel circuit is removed, the total resistance will be:

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Doubled

Decreased

Increased

Remain same

The value of K in SI unit is:

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9X10²⁰ Nm²C²

8X10⁹Nm²C²

9X10⁹Nm²C²

10X10^-9 Nm²C^-2

The force on a current carrying conductor is maximum if angle between field and conductor is:

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0^o

90^o

180^o

45^o

What should household appliances be connected in parallel with the voltage source?

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to increase the resistance of the circuit

to decrease the resistance of the circuit

to provide each appliance the same voltage as the power source

to provide each appliance the same current as the power source

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral charge

Repels a neutral chage

Which types of image is formed by a concave lens on a screen?

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Inverted and real

Inverted and virtual

upright and real

Upright and virtual

The horizontal range of a projectile of 30^owith horizontal is same at an angle.

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40^o

45^o

90^o

60^o

The Newton's formula for the speed of sound in air is

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The angle between x-axis, y-axis and z-axis is

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45°

60°

75°

90°

A spring has a spring constant k. If it is cut in two equal parts, the spring constant of each part will be

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K

2 K

K/2

4K

A paratooper moves downward with

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Zero acceleration

Constant acceleration

Positive acceleration

Negative acceleration

The slope of velocity time graph shows

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Total distance covered

Average acceleration

Instantaneous acceleration

Torque

A force of 10 N acts on a body of mass 5 kg in one second. The change in its momentum will be.

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10 kgms-1

50 kg ms-1

2 kg ms-1

20 kg ms-1

The basics quantity among the following is

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Mass

Torque

Force

Velocity

The difference between tow molar capacities is equal to.

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Plank's constant

General gas equation

Molar gas constant

Boltzmann constant

A man of 1 kg is freefalling. The force of gravity is

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1 N

9.8 N

0.5 N

Zero

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

When an electron in an atom goes from a lower to higher orbit its:

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K.E increases , P.E decreases

K.E increases , P.E increases

K.E decreases , P.E increases

K.E decreases , P.E decreases

For workers in nuclear facilities is, a weekly does of is normally considered safe

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1.0 msv

5.0 msv

2.0 msv

3.0 msv

The magnetic field inside solenoid is given:

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μ_∘nI²

μ_∘nI

μ_∘n/1²

μ_∘I/n

Using relativistic effects the location of an air craft after an hour fight can be predicated about

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20 m

50 m

760 m

780 m

An atom can reside in excited state for

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10^-8 second

One second

10^-10 second

More than one second

The mass of protons is:

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1.675 x 10^-27 kg

1.693 x 10^-27 kg

1.673 x 10^-31 kg

1.673 x 10^-27 kg

A charge Q is divided into tweo parts q and Q-q and seperated by a distance R. The force of equilibrium between them will be maximum when:

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q=Q/4

q=Q/2

q=Q

None of these

A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is.

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Speed

Kinetic energy

Path of motion

angular velocity

The unit of impedance is

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Farad

Henry

Tesla

Ohm

The electric intensity due to two oppositely charged plates is

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None of these

The binding energy for_________ is maximum.

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Copper

Glass

Iron

Aluminum