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

If the mass of the simple pendulum becomes double, its time period

Question # 2

For production of beats the two sources must have

Question # 3

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

Question # 4

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 5

The wave form of S.H.M will be

Question # 6

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 7

The square of 0.4 is:

Question # 8

Laplace formula is derived from

Question # 9

Mechanical waves on the surface of a liquid are

Question # 10

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

Question # 11

For transmission of both transverse and longitudinal waves, we can use:

Question # 12

In the resonance condition, the amplitude of the oscillator becomes

Question # 13

In stationary waves

Question # 14

The waves produced in a microwave oven have frequency

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 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
2 When an oscillatory motion repeats itself, then this type of motion is called
A. vibratory motion
B. constant motion
C. fixed motion
D. periodic motion
3 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
4 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
5 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
6 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
7 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
8 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
9 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
10 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line

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