ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

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

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Physics ECAT Pre Engineering Chapter 7 Oscillations

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Question # 1

The graph showing the variation of displacement with time is a

Question # 2

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

Question # 3

The unit of spring constant is:

Question # 4

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

Question # 5

Amplitude in SHM is equivalent to ______ in circular motion

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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 # 10

The S.I unit of frequency is

Question # 11

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

Question # 12

In vibrational motion(SHM)

Question # 13

When a body is vibrating, the displacement from mean position

Question # 14

The string of a simple pendulum should be:

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 Which one of the following is an example of SHM
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
2 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
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 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
5 Amplitude is the displacement of the vibrating body from:
A. One extreme position to the other extreme position
B. Mean position any one extreme position
C. Both A and B are correct
D. None of these
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 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
8 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
9 An object undergoes SHM. Its maximum equilibrium positions:
A. Maximum
B. Half of its maximum value
C. Zero
D. None
10 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration

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