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

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

Question # 2

Transverse waves can be set up:

Question # 3

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 4

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 5

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 6

The time period of pendulums of different lengths would be

Question # 7

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 8

The weight 'mg' of the bob is resolved into

Question # 9

Which of the following is the longitudinal waves?

Question # 10

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

Question # 11

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

Question # 12

Mechanical waves on the surface of a liquid are

Question # 13

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

Question # 14

There is no net transfer of energy by particle of medium in

Question # 15

Energy is not carried by

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
3 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
4 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
5 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
6 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
7 A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:
A. Longitudinal wave
B. Transverse wave
C. No vibration at all
D. None of them
8 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
9 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
10 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them

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