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

Which one of the following could be the frequency of ultraviolet radiation?

Question # 2

The wave motion set up in any medium depends upon:

Question # 3

Velocity of sound in vacuum (in m/s) is

Question # 4

When a wave is travels from one place to another, it transfers:

Question # 5

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

Question # 6

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 7

The bob of a simple pendulum is suspended by

Question # 8

The velocity of sound in air depends upon

Question # 9

When a body is performing S.H.M., its acceleration is

Question # 10

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

Question # 11

If a wave can be polarized, it must be

Question # 12

The phase determines the

Question # 13

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

Question # 14

In case of mechanical waves, we study the motion of

Question # 15

The distance covered by the wave during one period is called its:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves produced in a microwave oven have frequency
A. 2450 Hz
B. 2450 K Hz
C. 2450 M Hz
D. 2450 G Hz
2 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
3 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
4 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
5 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
6 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
7 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
8 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
9 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
10 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them

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