Question # 1

A process which can be retraced in exactly reverse order, without producing any change in the surroundings is called

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reversible process

irreversible process

any one of them

none of them

Einstein's theory about gravity if better than Newton's because it gave explanation of:

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Inverse square law

Bending of light

Both A and B

None of above

One complete round trip of the body about its mean position is called

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displacement

vibration

a complete motion

an acceleration

Flight of rocket in the space is an example of

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Newton's first law

Newton's third law

Newton's second law

all of them

The work performed on an object does not depend on:

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Force applied

Angle at which force is inclined to the displacement

Initial velocity of the object

Displacement

Melting point of ice

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Increases with increasing pressure

Decreases with increasing pressure

Is independent of pressure

Is proportional to pressure

The shell closer to the nucleus is called:

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N shell

L shell

K shell

M shell

O shell

Which of the following is an example of a S.H.M?

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motion of a projectile

motion of a train along a circular path

motion of swing

electrons revolving sound the nucleus

The principle characteristics of an ideal standard are

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Inaccessible and Invariable

Accessible and Invariable

Accessible and Variable

None of these

The solids which has structure in-between order and disorder are called

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amorphous solids

polymeric solids

crystalline solids

all of them

Particles have the mass smallest of following is:

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Electron

Proton

Neutron

Quark

Laser is a beam of:

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Visible light

Infra red light

Ultra violet light

Violet light only

yellow light only

Cosine of an angle is positive in:

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2nd quadrant

3rd quadrant

4th quadrant

All of these

In a normal healthy person the value of diastolic pressure is

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75 - 80 torr

100 torr

120 torr

none of them

When a conductor is moved across a magnetic field, the redistribution of charge sets up:

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Magnetic field

Electrostatic field

Electromagnetic field

All of these

None of these

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

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applied force

momentum

restoring force

none of them

Density is defined as:

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Mass per volume

Volume per mass

Mass x volume

Mass per length

Which one of the following causes production of heat when current is set up in a wire?

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Fall of electrons from higher orbits to lower orbits

Inter-atomic collisions

Inter-electron collisions

Collisions of conduction electron with atoms

The short distance between two points direction from its initial point to final point is called:

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Velocity

Displacement

Speed

Distance

The motion of molecules in gases is:

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Orderly

Random

Circular

All of these

The year when A.H. compton was awarded Nobel Prize is:

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1923

1927

1931

1935

None of these

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

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0.1 m

0.2 m

0.98 m

Full length of the capillary tube

The wave form of alternating voltage is the graph between:

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Voltage across X-axis and time across y-axis

Current and time

Voltage along y-axis and time along x-axis

Voltage and current

Either (B) or (D)

Deep water almost runs still when surface water flow in rivers. What does it explains

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Magnus effect

Equation of continuity

Surface energy

Bernoulli's equation

Example of progressive wave is

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transverse waves

longitudinal waves

both of them

none of them

An emf is set up in a conductor when it

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Is kept in a magnetic field

Is kept in an electric field

Moves across a magnetic field

Both A and B

None of these

Angular velocity is a:

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Scalar quantity

Vector quantity

Complex quantity

None of these

The range of wavelengths of colurs in the visible colours is

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140 nm to 456 nm

10 nm to 56 nm

410 nm to 656 nm

910 nm to 956 nm

None of these

Back emf is produced due to

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Self induction

Mutual induction

A.C

Lenz's law

A voltmeter is used to measure the

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potential difference

current

temperature

resistance

When a body is moving on a surface, the force of friction is called

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Static friction

Dynamic friction

Limiting friction

Rolling friction

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