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

Si units of time period is

Question # 2

Which of the following is the longitudinal waves?

Question # 3

If F=0.04 N and X=4 cm then K=

Question # 4

If the length of second pendulum becomes four times then its time period will become

Question # 5

In transverse waves, the individual particles of the medium move:

Question # 6

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

Question # 7

The time required to complete on vibration is called

Question # 8

The restoring force always directed towards the

Question # 9

If we increase the length of a simple pendulum four times, its time period will become

Question # 10

If a freely oscillating system is subjected to an external force, then

Question # 11

The weight 'mg' of the bob is resolved into

Question # 12

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

Question # 13

The example of mechanical wave is

Question # 14

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 15

To hear a clear echo, the reflecting surface must be at a minimum distance of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
2 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
3 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
4 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
5 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
6 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
7 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
8 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
9 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
10 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

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