Question # 1

The amplitude of a vibrating body at resonance in vacuum is

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Minimum

Maximum

Zero

Infinite

Angular acceleration is produced by

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Power

Torque

Pressure

Force

How many orbiting satellites from the Global positing system.

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3

12

24

22

When speed of a body is doubled then its

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K.E. is doubled

P.E. is doubled

Acceleration of doubled

Momentum is doubled

the angular version of F= ma is

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L = 1w

pi = 1a

l = pi a

f = mv/t

If the tension a stretched string is made four times then the velocity of wave.

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Remains same

Is halved

Becomes twice

Becomes 4 times

When temperature of source and sink of a heat engine becomes equal then the entropy change will be.

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zero

Minimum

Maximum

Negative

Transformation of heat other forms of energy is discussed in

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Thermal physics

Thermodynamics

Atomic physics

Nuclear physics

The angle between circumference of a circle and center is

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2 radian = ____

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2 m

4 m

57.3 m

114.6 m

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

At constant temperature and pressure, if volume of given mass of a gas is doubled then density is.

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Doubled

1/4 original

1/2 of original

Unchanged

The ability of reveal the minor details of an object under examination is called.

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Resolving power

Magnification

Scattering

Reflection

The relation between linear and angular velocity is

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Minimum number of unequal forces whose vector sum can be zero are.

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5

4

3

2

The mathematical expression for the restoring force is.

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F = kx

F = ma

F = dp/dt

F = -kx

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In case of point source the shape of wave front is

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Circular

Spherical

Elliptical

Square

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