ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

Try The MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

SHM is type of ______ motion

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The unit of spring constant is

Question # 9

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

Question # 10

The acceleration of body executing SHM is directly proportional to

Question # 11

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

Question # 12

Free oscillations are always produced by:

Question # 13

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 # 14

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

Question # 15

Which of the following forces is responsible for SHM

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The restoring force is ______ amd 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 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:
A. 4 gms
B. 0.4 gms
C. 40 gms
D. None of these
4 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
5 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
6 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
7 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
8 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
9 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
10 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these

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