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

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

Question # 2

Longitudinal waves are also called:

Question # 3

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

Question # 4

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 5

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 6

SI unit of frequency is

Question # 7

Fluids can transmit:

Question # 8

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

Question # 9

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 10

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

Question # 11

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

Question # 12

Two sources of sound are said to be coherent if

Question # 13

Angular frequency 'w' is basically a characteristics of

Question # 14

Energy is not carried by

Question # 15

In stationary waves

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
2 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them
3 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
4 The speed of sound in a medium depends on
A. The elastic property but not on the inertia property
B. The inertia property but not on the elastic property
C. The elastic property as well as the inertia property
D. Neither the elastic property nor the inertia property
5 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
A. Same
B. 2 times
C. 4 times
D. 8 times
6 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
7 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
8 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:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
9 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
10 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave

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