Question # 1

The pressure exerted by the gas is

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directly proportional to the P.E

inversely proportional to the P.E

inversely proportional to the K.E

directly proportional to the K.E

A high temperature, the proportion of shorter wavelengths radiation, emitted by the body

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decreases

first increases then decreases

increases

any one of them

An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:

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100 m/sec

140 m/sec

1960 m/sec

196 m/sec

At ordinary temperature, an increase in temperature increases the conductivity of

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Conductor

Semiconductor

Insulator

Alloy

Astrophysics is a branch of physics, which deals with

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Sub-atomic

Stars and galaxies

Light and sound

Music

When brakes are applied to a fast moving car, the passenger will be thrown:

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Forward

Backward

Downward

none of these

Three quarks make:

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An electron

A meson

A baryon

A photon

None of these

Which of the following is not an assumption of kinetic energy

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a finite volume of gas consists of very large number of molecules

the gas molecules are in random motion

collision between the gas molecules are inelastic

the size of the gas molecules is much smaller than the separation between molecules

Pressure of a gas at constant volume is proportion to

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Total energy of gas

Average P.E to molecules

Average K.E of molecules

Total internal energy of gas

Which of the following material has smaller has life

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uranium

polonium

radium

radian

The quantity having the same unit as that of emf is:

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Force

Energy

Potential

Current

Charge

The property of light which makes light possible to be transmitted into inaccessible place is

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Interference

Diffraction

Polarization

None of these

Huygen's theory cannot explain:

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Diffraction

Interference

Polarization

Photoelectric effect

The original source of Wind energy is

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Tides

Waves

Sun

Moon

The viscosity of water is

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0.019 x 10^-3 Nsm^-2

0.801 x 10^-3 N-sm^-2

6.29 x 10^-3 N-sm^-2

0.081 x 10³ N-sm^-2

If velocity of particle at different points does not change with time, flow is

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Streamline

Laminar

Steady

All of these

Uniform acceleration is defined as

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Average acceleration

Instantaneous acceleration

Equal change in velocity and time

None of these

The critical temperature T_c for lead is

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5.4 K

6.3 K

6.9 K

7.2 K

High energy physics is the physics of

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Nucleus

Subatomic particles

Plasma physics

Astrophysics

Assuming the earth to be a sphere of radius 6400 km. What is the value of acceleration due to gravity at a height of 800 km above the surface of the earth ?

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5.35 ms^-1

6.35 ms^-2

7.35 ms^-2

8.35 ms^-2

As isolated system in which

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No internal force acts

No external force acts

No internal and no external force acts

None of these

When the body is at rest the relation

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W - T = ma

T - W = ma

T = W

None of these

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