ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

Amplitude is the displacement of the vibrating body from:

Question # 2

Acceleration of body executing SHM is always directed towards

Question # 3

If time period of a pendulum is doubled by increasing its length, then its frequency will

Question # 4

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 5

An oscillating body oscillates due to:

Question # 6

The body oscillates due to ______ accelerates and overshoots the rest position due to _______

Question # 7

The time period of a simple pendulum is independent of its:

Question # 8

If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:

Question # 9

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 10

Hertz is unit of:

Question # 11

In SHM, the acceleration is ______ when velocity is _____:

Question # 12

When quarter of a circle is completed, phase of vibration is:

Question # 13

Vibratory motion is always under

Question # 14

Velocity of particle executing SHM will be maximum at

Question # 15

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:
A. 10 cm
B. 1 m
C. 10 mn
D. None of these
2 In vibrational motion(SHM)
A. P.E remains conserved
B. Average K.E remain constant
C. Neither P.E nor K.E remains constant
D. Total energy remains constant
3 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
4 The body oscillates due to ______ accelerates and overshoots the rest position due to _____:
A. Applied force , inertia
B. Restoring force, friction
C. Frictional force, inertia
D. Restoring force, inertia
5 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these
6 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
7 Amplitude is the displacement of the vibrating body from:
A. One extreme position to the other extreme position
B. Mean position any one extreme position
C. Both A and B are correct
D. None of these
8 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
9 Which of the following is an example of SHM(in ideal situations)
A. Motion of simple pendulum
B. Motion of horizontal spring man system
C. Motion of violin string
D. All of these
10 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness

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