Question # 1

transverse wave motion is possible in:

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Air

A mixture of NH₃and O₂

Strings

All of these

The waves produced in a microwave oven have wavelength.

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12 mm

12 cm

12 m

12 mm

For a body executing S. H. M, its

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momentum remains constant

potential energy remains constant

kinetic energy remains constant

total energy remains constant

If a freely oscillating system is subjected to an external force, then

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free vibrations will take place

the body will move with its natural frequency

forced vibrations will take place

none of them

When a mass 'm' is pulled slowly, the spring stretches by an amount x_o, then the work done will be

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W=Kx_o

W=1/2Kx_o

W=1/2Kx²_o

W=4Kx_o

Which type of wave can be set up in solids

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longitudinal waves

transverse waves

both of them

none of them

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

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1 : 2

4 : 1

1 : 4

2 : 1

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

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maximum

zero

half of the maximum value

one third of the maximum value

Angular frequency 'w' is basically a characteristics of

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linear motion

circular motion

both of them

none of them

When a mass 'm' is pulled slowly through a distance 'x_o' , the elastic potential energy of the spring would be

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P.E=Kx²_o

P.E= 1/2kx_o

P.E=1/2Kx²_o

P.E=Kx²_o

The wave form of S.H.M will be

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square wave

sine wave

rectified wave

saw-tooth wave

When the bob of simple pendulum is at mean position, its K.E will be

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maximum

minimum

zero

all of them

The time period of pendulums of different lengths would be

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same

different

both of them

none of them

Sound waves in air always

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Longitudinal

Transverse

Stationary

Electromagnetic

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

The process in which energy is dissipated from the oscillating system is known as

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resonance

interference

diffraction

damping

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ECAT Physics Chapter 8 Waves Online Test MCQs With Answers

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