ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

Which of the following quantity for particle executing SHM is non-zero at mean position

Question # 2

When quarter of a circle is completed, phase of vibration is:

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

Which one of the following is an example of SHM:

Question # 5

Which of the following forces is responsible for SHM

Question # 6

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Question # 7

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 8

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

Question # 9

The unit of spring constant is:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The graph showing the variation of displacement with time is a

Question # 14

When a body is vibrating, the displacement from mean position

Question # 15

Free oscillations are always produced by:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Distance covered during one vibration of an oscillating body in terms of amplitude A is:
A. A
B. 2 A
C. 3 A
D. 4 A
2 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
3 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
4 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
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 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
7 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
8 A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:
A. Circular motion, circumference
B. Vibratory, chord
C. SHM, diameter
D. SHM, circumference
9 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
10 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°

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