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

Smaller the damping, greater will be the

Question # 2

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

Question # 3

The principle of superposition states that

Question # 4

The loudness and pitch of a sound note depends on

Question # 5

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

Question # 6

For a body executing S. H. M, its

Question # 7

If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

If the time period a simple pendulum is 2 s, its frequency would be

Question # 12

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

Question # 13

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:

Question # 14

The distance covered by the wave in one second is:

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The principle of superposition states that
A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually
B. Two stationary waves superimpose to give two progressive waves
C. A diffraction pattern consists of many interference patterns superimposed on one another
D. Two progressive waves superimpose to give a stationary wave
2 Which of the following changes at an antinode in a stationary wave?
A. Density only
B. Pressure only
C. Both pressure and density
D. Neither pressure nor density
3 The velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3
4 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
5 When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:
A. Longitudinal waves
B. Transverse waves
C. Water waves
D. Complex waves
6 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
7 An object undergoes S.H.M has maximum speed when its displacement from the mean position is
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
8 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these
9 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave
10 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec

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