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

The graph showing the variation of displacement with time is a

Question # 3

SHM is type of ______ motion

Question # 4

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

Question # 5

When a body is vibrating, the displacement from mean position

Question # 6

The S.I unit of frequency is

Question # 7

An oscillating body oscillates due to:

Question # 8

Which one of the following is an example of SHM:

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

Amplitude in SHM is equivalent to ______ in circular motion

Question # 11

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

Question # 12

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

Question # 13

Vibratory motion is always under

Question # 14

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

Question # 15

A body with frequency would complete one vibration in:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
2 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
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:
A. 4 gms
B. 0.4 gms
C. 40 gms
D. None of these
4 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
5 If time period of a pendulum is doubled by increasing its length, then its frequency will
A. Also be doubled
B. Become half
C. Become one fourth
D. Becomes four times
6 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
7 When a body is vibrating, the displacement from mean position
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
8 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
9 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration
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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