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

Which type of wave can be set up in solids

Question # 2

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 3

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 4

Which one of the following is an example of resonance

Question # 5

Energy is not carried by

Question # 6

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

Question # 7

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 8

Which of the following is the longitudinal waves?

Question # 9

The expression for restoring force is

Question # 10

The bob of a simple pendulum is suspended by

Question # 11

The waves produced in a microwave oven have frequency

Question # 12

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

Question # 13

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

Question # 14

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

Question # 15

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration
3 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
4 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them
5 In a resonance situation the amplitude of the motion may become extra ordinarily large, if
A. the driving force is large
B. the driving force is zero
C. the driving force may be feeble
D. all of them
6 It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be
A. 60°
B. 90°
C. 120°
D. 180°
7 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
8 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them
9 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
10 Which of the following does not exhibit S.H.M?
A. a plucked violin string
B. a mass attached to a spring
C. a train shunting between two terminals
D. a simple pendulum

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