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 elasticizes is possessed by fluids:

Question # 2

A simple pendulum consists of a

Question # 3

The wave motion set up in any medium depends upon:

Question # 4

When sound waves travel from air to water which of these remains constant?

Question # 5

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

Question # 6

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?

Question # 7

The force which opposes the applied force producing the displacement in the spring is called

Question # 8

The time required to complete on vibration is called

Question # 9

Fidelity refers to

Question # 10

Shock absorber of the car is an example of

Question # 11

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

Question # 12

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

Question # 13

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

Question # 14

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 15

In stationary waves

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When temperature increase, the frequency of a tuning fork
A. Increases
B. Decreases
C. Remains same
D. Increase or decreases depending on the material
2 The principle of superposition states that
A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually
B. Two stationary waves superimpose to give two progressive waves
C. A diffraction pattern consists of many interference patterns superimposed on one another
D. Two progressive waves superimpose to give a stationary wave
3 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
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 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
6 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
7 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
8 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
9 The waves which propagate by the collision of material particles are known as
A. e.m. waves
B. mechanical waves
C. light waves
D. microwaves
10 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them

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