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

The example of mechanical wave is

Question # 2

A weakly damped system has fairly

Question # 3

Fluids can transmit:

Question # 4

The natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 5

Which of the following is the longitudinal waves?

Question # 6

Which of the following changes at an antinode in a stationary wave?

Question # 7

If a freely oscillating system is subjected to an external force, then

Question # 8

The frequency of free vibrations is known as

Question # 9

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 10

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 11

A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is

Question # 12

The characteristic of a body executing S.H.M is that its acceleration is

Question # 13

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

Question # 14

The time required to complete on vibration is called

Question # 15

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
2 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection
3 In stationary waves
A. Energy is uniformly distributed
B. Energy is minimum at nodes and maximum at antinodes
C. Energy is maximum at nodes and minimum at antidotes
D. Alternating maximum and minimum energy producing at nodes and antinodes
4 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string
5 When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be
A. P.E=Kx2o
B. P.E= 1/2kxo
C. P.E=1/2Kx2o
D. P.E=Kx2o
6 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
7 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
8 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
9 When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be
A. W=Kxo
B. W=1/2Kxo
C. W=1/2Kx2o
D. W=4Kxo
10 The velocity of sound in air not effected by changes in
A. Moisture contents in air
B. Temperature of air
C. The atmosphere pressure
D. The composition of air

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