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

The instantaneous velocity of a body moving along a circle is directed

Question # 2

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 3

The velocity of sound is greatest in

Question # 4

transverse wave motion is possible in:

Question # 5

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

Question # 6

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

Question # 7

The waves moving from a sitar to a listener in air are

Question # 8

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

Question # 9

The expression for restoring force is

Question # 10

The velocity of sound at same temperature is maximum in

Question # 11

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

Question # 12

Decibel is unit of

Question # 13

A heavily damped system has a fairly

Question # 14

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

Question # 15

The frequency of free vibrations is known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line
2 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
3 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
4 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
5 If a simple pendulum is shifted from karachi to K-2 cliff, its time period
A. remains the same
B. decreases
C. increases
D. none of them
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 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
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 Acceleration of the mass at any instant is given by
A. a=k/m x
B. a= - m/k x
C. a = - k/m x
D. a=m/k x
10 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them

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