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

A traveling wave has a shape of:

Question # 2

The wave motion set up in any medium depends upon:

Question # 3

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 4

If a wave can be polarized, it must be

Question # 5

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

Question # 6

The velocity of sound in air not effected by changes in

Question # 7

Which one of the following wave motions is transverse:

Question # 8

Time period of a simple pendulum depends upon the

Question # 9

The velocity of sound in air depends upon

Question # 10

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 11

Acceleration of the mass at any instant is given by

Question # 12

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Angular frequency 'w' is basically a characteristics of
A. linear motion
B. circular motion
C. both of them
D. none of them
2 The velocity of sound is greatest in
A. Water
B. Air
C. Vacuum
D. Metal
3 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
4 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
5 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
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 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
8 Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?
A. 103
B. 106
C. 109
D. 1012
9 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
10 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

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