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

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

Question # 2

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

Question # 3

Which one of the following is an example of SHM

Question # 4

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

Question # 5

An object undergoes SHM. Its maximum equilibrium positions:

Question # 6

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

Question # 7

The restoring force is always directed towards:

Question # 8

In SHM, the acceleration is ______ when velocity is _____:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Amplitude is the displacement of the vibrating body from:

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Class Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration
3 When a body is vibrating, the displacement from mean position:
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
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 To and from motion of a body about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
6 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
7 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
8 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
9 A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:
A. Circular motion, circumference
B. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
10 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°

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