Question # 1

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

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displacement

vibration

a complete motion

an acceleration

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

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Interference

Diffraction

Polarization

Refraction

When sound waves travel from air to water which of these remains constant?

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Velocity

Frequency

Wavelength

All the above

Which of the following is the longitudinal waves?

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Sound waves

Waves on plucked string

Water waves

Light waves

Which one is not produced by sound waves in air?

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Polarization

Diffraction

Refraction

Reflection

A body is executing free vibrations when it oscilates

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with the interference of an external force

without the interference of an external force

with the interference of an internal force

none of them

The example of mechanical wave is

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waves in ropes

waves on water surface

waves in air

all of them

Example of vibratory motion is

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mass suspended from a spring

a bob of simple pendulum

mass attached to a spring placed

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

When a wave is travels from one place to another, it transfers:

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Matter

Energy

Momentum

Both B and C

Smaller the damping, greater will be the

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frequency

wavelength

amplitude

none of them

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

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Crest

Trough

Both A and B

None of these

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

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maximum

zero

half of the maximum value

one third of the maximum value

If F=0.04 N and X=4 cm then K=

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1 Nm^-1

2 Nm^-1

3 Nm^-1

4 Nm^-1

The maximum displacement of a body on either side of its equilibrium position is called

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frequency

amplitude

displacement

time period

A physical system under going forced vibrations is known as

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Simple harmonic oscillator

Compound harmonic oscillator

Physical harmonic oscillator

driven harmonic oscillator

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