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

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

Question # 2

Waves transport energy

Question # 3

In solids, only following type/s of wave can travel:

Question # 4

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

Question # 5

Shock absorber of the car is an example of

Question # 6

The total energy of spring mass system is

Question # 7

In case of mechanical waves, we study the motion of

Question # 8

The damping depends upon the

Question # 9

A simple pendulum consists of a

Question # 10

When temperature increase, the frequency of a tuning fork

Question # 11

The loudness and pitch of a sound note depends on

Question # 12

Which one of the following elasticizes is possessed by fluids:

Question # 13

Example of vibratory motion is

Question # 14

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

Question # 15

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
2 Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator
A. greater than the frequency of applied force
B. equal to the frequency of applied force
C. less than the frequency of applied force
D. all of them
3 Ultra-violet rays differ from X-rays in that they
A. Cannot be diffracted
B. Cannot be polarized
C. Have a lower frequency
D. Are deviated when they pass through a magnetic field
4 The loudness and pitch of a sound note depends on
A. Intensity and velocity
B. Frequency and velocity
C. Intensity and frequency
D. Frequency and number of harmonic
5 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
6 A second's pendulum is a pendulum whose time period is
A. 1 second
B. 2 seconds
C. 3 seconds
D. 4 seconds
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 distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
9 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
10 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them

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