Question # 1

Latent heat of fusion is denoted by:

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H1

Hm

Hv

Hf

Rocket works on principle of ______________

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Action Reaction

Law of inertia

Mass energy

Nil

O maximum height the P.E of the body is:

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Zero

Maximum

Minimum

None of these

Land and Sea breezes are the results of:

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Conduction

Convection

Radiation

Conduction and radiation

The unit of stress is:

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Newton

Pascal

Nm^-2

m³

The value of gravitational constant is SI unit is

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0.673 x 10-10

6.673 x 10-11

4.32 x 10-9

5.32 x 10-11

Moon complete its one revolution around the earth is ___________ DAYS:

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29

27.3

30

21

Density of water in kgm^-3 is:

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1000

4200

4300

4500

A large water reservoir heeps the temperature of nearby land moderate due to:

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Low temperature

Low specific heat of water

Less absorption of heat

Large specific heat of water

It is easy to turn a steering wheel by applying a:

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Torque

Force

Couple

Momentum

____________ deals with temperature .

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Bio physics

Geophysics

Thermo physics

Plasma physics

In series combination of capacitors, each capacitor will have same:

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Voltage

Charge

Capacitance

Charge and voltage

If we double the distance between two charges, then force becomes

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4-times

1/4th

Double

Half

The symbol of AND operation is:

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+

-

.

*

To see stomach problems we use:

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Gastroscope

Bronchoscope

Cystoscope

All of these

Concave mirror formula is given by:

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R = 2r

sin<i/sin<r

1/f=1/p+1/q

1/f=1/p-1/q

The ray of the light after reflection from concave mirror passes through:

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Centre

Principal focus

Pole

None of these

If we double the distance between two charges, then force becomes:

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4-times

¼ th

Double

Half

The unit of power is _________

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Volt

Watt

Joule

Coulomb

Which of the following devices can be used to produce both a transverse and longitudinal waves?

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A string

A ripple tank

A helical spring

A tuning fork

by connecting suitable high resistance in series with galvanometer it will convert into:

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voltmeter

galvanometer

ammeter

multimeter

A.C generator works on the principle of:

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Electrostatic induction

Electromagnetic induction

Law of gravitation

Third law of motion

Kg ms-1 can also be written as

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Nm

Ns

Ns-1

Js

If the object is at 5 cm from the lens of simple microscope than its magnifying power will be.

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5

10

15

25

In matter, the Atoms are in a state of never ending

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Motion

Rest

Change

State of decline

A man weight 1000 N in a stationary lift. If the lift moves up with an acceleration of 10 ms-2. then its weight becomes.

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1000 N

2000 N

3000 N

0 N

The regular or steady flow of fluid is called

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Stream line

Turbulent flow

Average flow

None of these

For normal adjustment what is the length of astronomical telescope if focal lengths of astronomical telescope if focal lengths of objective and eye piece are 100 cm 20 cm respectively.

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10 cm

20 cm

5 cm

120 cm

The unit of energy is same as that of

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Power

Work

Torque

Density

Which of the following is evidence of wave nature of light

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Interference

Diffraction

Polarization

All of these

The diastolic pressure of a normal healthy person is.

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120 torr

110 torr

100 torr

75-80 torr

The shape of trajectory of short range projectile is

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Straight line

Circle

Elliptical

Parabolic

In stationary waves the points which always remain at rest are.

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Nodes

Antinodes

Crest

Trough

Mutual induction has a practical role in the performance of the.

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Radio choke

Transformers

A.C. Generator

D.C. Generator

Helium-Neon laser discharge tube contains neon

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82%

15%

25%

85%

The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is

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1972

1965

1958

1913

Electric flux is a:

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Scalar quantity

Vector quantity

Variable quantity

None of these

The energy of 4th Orbit in hydrogen atom is.

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-2.51 eV

-3.50 eV

-13.60 eV

-0.85 eV

The input resistance of an op amplifier is.

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Low

High

Zero

Equal to output resistance

The condition for the wheatstone bridge to be balanced is given by

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None of above

The average gap for Germanium at 0K is

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1.12 ev

0.02 ev

6.72 ev

7.2 ev

In Helium Neon laser, discharge tube is filled with Neon gas.

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10%

15%

85%

90%

Bremsstrahlung radiation are examples of

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Atomic spectra

Molecular spectra

Continuous spectra

Discrete spectra

In Millikan's oil drop experiment a charged particle of mass 'm' is in equilibrium in an will

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Zero

g/2

g

2g