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

00:00
Question # 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:

Question # 2

When quarter of a cycle is completed, the phase of vibration is:

Question # 3

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

Question # 4

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 5

An object undergoes SHM. Its maximum equilibrium positions:

Question # 6

A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The unit of spring constant is:

Question # 11

SHM is type of ______ motion

Question # 12

Amplitude in SHM is equivalent to ______ in circular motion

Question # 13

A body with frequency of would complete one vibration in:

Question # 14

The graph showing the variation of displacement with time is a

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1
2 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
3 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
4 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
5 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
6 A particle executes SHM with frequency. The frequency with which its K.E oscillates is
A. f/2
B. 2f
C. f
D. 4f
7 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
8 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
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 time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B

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