ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 8 Waves

Try The MCQ's Test For ECAT Physics Chapter 8 Waves

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ECAT Physics Chapter 8 Waves

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Question # 1

The number of vibrating body at any instant from its equilibrium position is called

Question # 2

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 3

A simple pendulum consists of a

Question # 4

Example of progressive wave is

Question # 5

The wave motion set up in any medium depends upon:

Question # 6

In compressional wave,the layer of medium having reduced pressure is called:

Question # 7

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

Question # 8

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

Question # 9

In stationary waves

Question # 10

The velocity of sound at same temperature is maximum in

Question # 11

The distance covered by the wave during one period is called its:

Question # 12

Energy is not carried by

Question # 13

When two progressive waves of nearly same frequencies superimpose and give rise to beats, then

Question # 14

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 15

transverse wave motion is possible in:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
2 If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get
A. diffraction
B. beat
C. interference
D. resonance
3 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
4 Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of
A. very small energy
B. very large energy
C. frictional forces
D. acceleration due to gravity
5 The velocity of sound is greatest in
A. Water
B. Air
C. Vacuum
D. Metal
6 When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be
A. F= Kx0
B. F=1/2Kx0
C. F=2Kx0
D. F=4Kx0
7 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
8 As the bob of the pendulum moves to and fro which of the force is experienced by the bob
A. its weight
B. tension in the string
C. viscous drag force by air
D. all of them
9 The resonance will be sharp, if the amplitude decreases rapidly at a frequency
A. equal to the resonant frequency
B. slight different from the resonant frequency
C. greatly different from the resonant frequency
D. any one of them
10 When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to
A. applied force
B. momentum
C. restoring force
D. none of them

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