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

The restoring force is _____ and opposite to the applied force within ______,:

Question # 2

Acceleration of body executing SHM is always directed towards

Question # 3

In vibrational motion(SHM)

Question # 4

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

Question # 5

In SHM, there is always a constant ratio between displacement if body and its:

Question # 6

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

Question # 7

The time taken to complete one vibration is called:

Question # 8

The string of a simple pendulum should be:

Question # 9

When a body is vibrating, the displacement from mean position

Question # 10

The wave form of SHM is

Question # 11

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

Question # 12

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

Question # 13

The body oscillates due to _____ accelerates and overshoots the rest position due to______,:

Question # 14

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

Question # 15

To and from motion of a body about its mean position is known as:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None
2 If time period of a pendulum is doubled by increasing its length, then its frequency will
A. Also be doubled
B. Become half
C. Become one fourth
D. Becomes four times
3 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
4 When a body is vibrating, the displacement from mean position
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
5 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
6 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
7 If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:
A. 250 N m-1
B. 25 N m-1
C. 2.5 N m-1
D. None of these
8 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
9 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
10 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these

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