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

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

Question # 2

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

Question # 3

An angle of 180° in circular motion is equivalent to ______ in SHM.

Question # 4

To and fro motion of a body is about its mean position is known as:

Question # 5

Hertz is unit of:

Question # 6

If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:

Question # 7

Velocity of particle executing SHM will be maximum at

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

To and from motion of a body about its mean position is known as:

Question # 12

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

Question # 13

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

Question # 14

The string of a simple pendulum should be:

Question # 15

If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
2 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
3 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
4 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
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 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
7 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
8 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
10 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only

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