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 waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 2

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

Question # 3

The waves which propagate by the collision of material particles are known as

Question # 4

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

Question # 5

Decibel is unit of

Question # 6

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

Question # 7

Energy is not carried by

Question # 8

When two waves with same frequency and constant phase difference phase difference interfere

Question # 9

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

Question # 10

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 11

Angular frequency 'w' is basically a characteristics of

Question # 12

Which one of the following wave motions is transverse:

Question # 13

The waves produced in a microwave oven have wavelength.

Question # 14

The wave form of S.H.M will be

Question # 15

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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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
2 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
3 If F=0.04 N and X=4 cm then K=
A. 1 Nm-1
B. 2 Nm-1
C. 3 Nm-1
D. 4 Nm-1
4 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
5 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
6 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
7 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
8 The waves which propagate out in space due to oscillation of electric and magnetic fields are known as
A. e.m. waves
B. mechanical waves
C. sound waves
D. water waves
9 The speed of sound in a medium depends on
A. The elastic property but not on the inertia property
B. The inertia property but not on the elastic property
C. The elastic property as well as the inertia property
D. Neither the elastic property nor the inertia property
10 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound

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