ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

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 SI unit of spring constant is identical with that of:

Question # 2

Which of the following forces is responsible for SHM

Question # 3

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 # 4

The acceleration of body executing SHM is directly proportional to

Question # 5

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

Question # 6

The restoring force is always directed towards:

Question # 7

The graph showing the variation of displacement with time is a

Question # 8

Which one of the following is an example of SHM

Question # 9

A body with frequency of would complete one vibration in:

Question # 10

When a body is vibrating, the displacement from mean position

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Which one of the following is an example of SHM:

Question # 15

The time taken to complete one vibration is called:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
2 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
3 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
4 The restoring force is ______ amd 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
5 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
6 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
7 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
8 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
9 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
10 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1

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