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

For production of beats the two sources must have

Question # 2

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

Question # 3

The restoring force always directed towards the

Question # 4

The velocity of sound is greatest in

Question # 5

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

Question # 6

transverse wave motion is possible in:

Question # 7

For a body executing S. H. M, its

Question # 8

The waves which propagate by the collision of material particles are known as

Question # 9

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 10

Laplace formula is derived from

Question # 11

Acceleration of the mass at any instant is given by

Question # 12

A physical system under going forced vibrations is known as

Question # 13

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

Question # 14

Mechanical waves on the surface of a liquid are

Question # 15

The wave motion set up in any medium depends upon:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
2 Two sources of sound are said to be coherent if
A. The produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase difference all instant of time
3 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
4 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
5 A wave, which transfer energy by moving away from the source of disturbance is called a
A. progressive wave
B. travelling wave
C. both of them
D. none of them
6 A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is
A. 2 m
B. 1 m
C. 0.5 m
D. 4 m
7 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
8 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
9 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
10 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them

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