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 indentical segments, the spring constant of each segment is:

Question # 2

When a body is vibrating, the displacement from mean position

Question # 3

Which of the following is an example of SHM(in ideal situations)

Question # 4

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

Amplitude is the displacement of the vibrating body from:

Question # 10

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 11

An oscillating body oscillates due to:

Question # 12

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

Question # 13

The time period of a simple pendulum is independent of its:

Question # 14

The graph showing the variation of displacement with time is a:

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these
2 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
3 An object undergoes SHM. Its maximum equilibrium positions:
A. Maximum
B. Half of its maximum value
C. Zero
D. None
4 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
5 In vibrational motion(SHM)
A. P.E remains conserved
B. Average K.E remain constant
C. Neither P.E nor K.E remains constant
D. Total energy remains constant
6 Amplitude in SHM is equivalent to_____ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
7 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
8 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
9 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
10 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

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