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

For transmission of both transverse and longitudinal waves, we can use:

Question # 2

The phase determines the

Question # 3

The waves produced in a microwave oven have wavelength.

Question # 4

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Question # 5

Smaller the damping, greater will be the

Question # 6

The bob of a simple pendulum is suspended by

Question # 7

Crests and troughs are formed in:

Question # 8

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 9

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 10

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 11

Which one is not produced by sound waves in air?

Question # 12

The time period of pendulums of different lengths would be

Question # 13

A traveling wave has a shape of:

Question # 14

One complete round trip of the body about its mean position is called

Question # 15

A physical system under going forced vibrations is known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
2 If the displacement of a body executing S.H.M is plotted against time, then the curve is known as
A. frequency of S.H.M
B. period of S.H.M
C. wave form
D. none of them
3 Which one of the following is an example of resonance
A. swing
B. tuning a radio
C. microwave oven
D. all of them
4 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
5 Which of the following is an example of a S.H.M?
A. motion of a projectile
B. motion of a train along a circular path
C. motion of swing
D. electrons revolving sound the nucleus
6 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
7 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
8 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
9 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
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
10 The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:
A. Mechanical waves
B. Electromagnetic waves
C. Matter waves
D. All of them

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