Question # 1

When temperature increase, the frequency of a tuning fork

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Increases

Decreases

Remains same

Increase or decreases depending on the material

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

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Same

2 times

4 times

8 times

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

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rotatory motion

motion under gravity

angular motion

simple harmonic motion

Angular frequency 'w' is basically a characteristics of

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linear motion

circular motion

both of them

none of them

The vibrations of factory floor caused by the running of heavy machinery is an example of

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free vibration

natural vibrations

forced vibrations

all of them

Mechanical waves on the surface of a liquid are

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Transverse

Longitudinal

Torsional

both transverse and longitudinal

The expression of Hook's law is

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F=ma

F=kx

F= -kx

-kx=ma

Time period of simple pendulum is independent of

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length

mass

acceleration due to gravity

none of them

A heavily damped system has a fairly

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sharp resonance curve

flat resonance curve

both of them

none of them

The velocity of sound in air depends upon

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Density and elasticity of gas

Pressure

Wavelength

Amplitude and frequency of sound

In solids, only following type/s of wave can travel:

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Transverse

Longitudinal

Both A and B

None of them

A traveling wave has a shape of:

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Square wave

Sine wave

Parabola

hyperbola

The vibratory or oscillatory motion of a body is

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translatory motion

back and forth motion about its mean position

free all motion

circular motion

Waves transport energy

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without transport energy

with matter

both of them

none of them

The waves moving from a sitar to a listener in air are

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Longitudinal progressive

Longitudinal stationary

Transverse progressive

Transverse stationary

The velocity of sound in air not effected by changes in

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Moisture contents in air

Temperature of air

The atmosphere pressure

The composition of air

Longitudinal waves are also called:

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Congressional waves

Transverse waves

Radio waves

None of them

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

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Sinusoidal shape with amplitude A/3

Sinusoidal shape with amplitude A/2

Sinusoidal shape with amplitude A

Straight line

The portion of the water above its mean level forms a:

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Crest

Trough

Both A and B

None of these

The principle of superposition states that

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The total displacement due to several waves is the sum of the displacement due to those waves acting individually

Two stationary waves superimpose to give two progressive waves

A diffraction pattern consists of many interference patterns superimposed on one another

Two progressive waves superimpose to give a stationary wave

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

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its weight

tension in the string

viscous drag force by air

all of them

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

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Longitudinal waves

Transverse waves

Water waves

Complex waves

A simple pendulum consists of a

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small light bob

small heavy bob

big light bob

big heavy bob

The example of mechanical wave is

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waves in ropes

waves on water surface

waves in air

all of them

Velocity of sound in vacuum (in m/s) is

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330

1000

156

0

The square of 0.4 is:

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Greater than 0.4

Smaller than 0.4

Equal to 0.4

None of them

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

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45°

90°

135°

180°

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

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Stationary waves

Transverse waves

Both of these

None of these

A second's pendulum is a pendulum whose time period is

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1 second

2 seconds

3 seconds

4 seconds

The speed of sound in a medium depends on

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The elastic property but not on the inertia property

The inertia property but not on the elastic property

The elastic property as well as the inertia property

Neither the elastic property nor the inertia property

Fluids can transmit:

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Transverse wave

Compressional wave

Both of them

None of them

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