ECAT Pre Engineering Physics Chapter 8 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 8 Waves

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Physics ECAT Pre Engineering Chapter 8 Waves

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Question # 1

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

Question # 2

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

Question # 3

The maximum displacement of a body on either side of its equilibrium position is called

Question # 4

transverse wave motion is possible in:

Question # 5

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

Question # 6

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Question # 7

A heavily damped system has a fairly

Question # 8

Decibel is unit of

Question # 9

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

Question # 10

Through which character we can distinguish the light waves from sound waves

Question # 11

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

Question # 12

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

Question # 13

The portion of the water above its mean level forms a:

Question # 14

Example of progressive wave is

Question # 15

If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
2 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
3 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
4 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
5 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these
6 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
7 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
8 If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
9 Acceleration of the mass at any instant is given by
A. a=k/m x
B. a= - m/k x
C. a = - k/m x
D. a=m/k x
10 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them

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