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

Question # 2

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

Question # 3

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

Question # 4

Acceleration of body executing SHM is always directed towards

Question # 5

Free oscillations are always produced by:

Question # 6

Amplitude is the displacement of the vibrating body from:

Question # 7

The displacement of body executing SHM is

Question # 8

The restoring force is ______ and opposite tot he applied force within ______

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

The acceleration of body executing SHM is directly proportional to

Question # 13

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

Question # 14

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

Question # 15

A body with frequency of would complete one vibration in:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
3 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
4 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
5 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
6 If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:
A. 1 cm
B. 1 m
C. 10 mm
D. None of these
7 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
8 A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:
A. 1.5 sec
B. 2.0 sec
C. 2.3 sec
D. 2.5 sec
9 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
10 If a force of 0.05 N produces an elongation of 20 mm in a 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

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