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

Waves transport energy

Question # 2

Which of the following is not mechanical wave?

Question # 3

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 4

Shock absorber of the car is an example of

Question # 5

Which waves are used in sonography?

Question # 6

Which one of the following could be the frequency of ultraviolet radiation?

Question # 7

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

Question # 8

Angular frequency 'w' is basically a characteristics of

Question # 9

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

Question # 10

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

Question # 11

The weight 'mg' of the bob is resolved into

Question # 12

The waves which propagate through the oscillations of material particles are known as:

Question # 13

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

Question # 14

SI unit of frequency is

Question # 15

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
2 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
3 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
4 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
5 Which one of the following elasticizes is possessed by fluids:
A. Young's elastic modulus (length)
B. Bulk elastic modulus (volume)
C. Modulus of rigidity (shape)
D. None of these
6 A physical system under going forced vibrations is known as
A. Simple harmonic oscillator
B. Compound harmonic oscillator
C. Physical harmonic oscillator
D. driven harmonic oscillator
7 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection
8 Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator
A. greater than the frequency of applied force
B. equal to the frequency of applied force
C. less than the frequency of applied force
D. all of them
9 If the displacement of a body executing S.H.M is plotted against time, then the curve is known as
A. frequency of S.H.M
B. period of S.H.M
C. wave form
D. none of them
10 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma

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