ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

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ECAT Pre General Science Physics Chapter 7 Oscillations

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Question # 1

Amplitude is the displacement of the vibrating body from:

Question # 2

The displacement of body executing SHM is

Question # 3

A body with frequency would complete one vibration in:

Question # 4

In vibrational motion(SHM)

Question # 5

An object undergoes SHM. Its maximum equilibrium positions:

Question # 6

The unit of spring constant is

Question # 7

The SI unit of spring constant is identical with that of:

Question # 8

Hertz is unit of:

Question # 9

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

Question # 10

The acceleration of body executing SHM is directly proportional to

Question # 11

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

Question # 12

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

Question # 13

Which of the following quantity for particle executing SHM is non-zero at mean position

Question # 14

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

Question # 15

Which of the following is an example of SHM(in ideal situations)

Question # 16

The string of a simple pendulum should be:

Question # 17

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

Question # 18

An object in SHM will have maximum speed when its displacement from equilibrium position is:

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 25

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

Question # 26

The restoring force is always directed towards:

Question # 27

When quarter of a cycle is completed, the phase of vibration is:

Question # 28

A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:

Question # 29

The time taken to complete one vibration is called:

Question # 30

An oscillating body oscillates due to:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 Distance covered during one vibration of an oscillating body in terms of amplitude A is:
A. A
B. 2 A
C. 3 A
D. 4 A
3 If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:
A. k/2
B. 2 k
C. 4 k
D. None of these
4 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
5 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
6 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
7 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
8 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
9 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
10 If a force of 0.05 N produces an elongation of 20 mm in 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

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