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

Question # 2

The restoring force is always directed towards:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

The acceleration of body executing SHM is directly proportional to

Question # 7

A body with frequency of would complete one vibration in:

Question # 8

Free oscillations are always produced by:

Question # 9

Second's pendulum is the pendulum whose time period is:

Question # 10

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 11

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

Question # 12

Amplitude is the displacement of the vibrating body from:

Question # 13

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

Question # 14

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

Question # 15

In SHM, the acceleration is ______ when velocity is _____:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following is an example of SHM(in ideal situations)
A. Motion of simple pendulum
B. Motion of horizontal spring man system
C. Motion of violin string
D. All of these
3 The restoring force is _____ and 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
4 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
5 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
6 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
7 If a force of 0.05 N produces an elongation of 20 mm in 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
8 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
9 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
10 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency

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