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

In vibrational motion(SHM)

Question # 2

The time taken to complete one vibration is called:

Question # 3

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

Question # 4

The string of a simple pendulum should be:

Question # 5

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 6

If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:

Question # 7

Which one of the following is an example of SHM:

Question # 8

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

Question # 9

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Question # 10

An oscillating body oscillates due to:

Question # 11

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

Question # 12

If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:

Question # 13

The acceleration of body executing SHM is directly proportional to

Question # 14

A spring of constant k = 0.4 N m-1is to be extended thorugh 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
3 A body with frequency of would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
4 The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.
A. f
B. 2 f
C. 3 f
D. 1/2 f
5 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1
6 Which of the following quantity for particle executing SHM is non-zero at mean position
A. Force
B. Acceleration
C. Velocity
D. Displacement
7 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
8 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
9 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
10 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

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