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

Acceleration of body executing SHM is always directed towards

Question # 2

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

Question # 3

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

Question # 4

The wave form of SHM is

Question # 5

Second's pendulum is the pendulum whose time period is:

Question # 6

An angle of 180° in circular motion is equivalent to ______ in SHM.

Question # 7

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

Question # 8

The graph showing the variation of displacement with time is a

Question # 9

The unit of spring constant is:

Question # 10

The time taken to complete one vibration is called:

Question # 11

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

Question # 12

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

Question # 13

The string of a simple pendulum should be:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The restoring force is _____ and opposite to the applied force within ______,:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these
2 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:
A. 4 gms
B. 0.4 gm
C. 40 gms
D. None of these
3 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
4 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:
A. 2500 MHz
B. 0.25 MHz
C. 2500 KHz
D. None of these
5 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
6 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
7 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
8 To and fro motion of a body is about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
9 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
10 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

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