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

Question # 2

A particle moving uniformly along circle its projection along diameter performs

Question # 3

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

Question # 4

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 # 5

Free oscillations are always produced by:

Question # 6

The unit of spring constant is

Question # 7

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

Question # 8

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

Question # 9

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 10

Which one of the following is an example of SHM

Question # 11

Acceleration of body executing SHM is always directed towards

Question # 12

Hertz is unit of:

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
2 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
3 The time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B
4 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
5 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
6 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
7 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
8 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
9 If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:
A. 10 cm
B. 1 m
C. 10 mn
D. None of these
10 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

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