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 expression for restoring force is

Question # 2

If F=0.04 N and X=4 cm then K=

Question # 3

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

Question # 4

A simple pendulum consists of a

Question # 5

Time period of a simple pendulum depends upon the

Question # 6

SI unit of frequency is

Question # 7

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

Question # 8

The vibrations of factory floor caused by the running of heavy machinery is an example of

Question # 9

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 10

The damping depends upon the

Question # 11

When temperature increase, the frequency of a tuning fork

Question # 12

SI unit of wave length is:

Question # 13

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

Question # 14

The waves produced in a microwave oven have wavelength.

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them
3 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
4 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
5 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
6 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these
7 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
8 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
9 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
10 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec

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