ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

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ECAT Pre General Science Physics Chapter 7 Oscillations

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Question # 1

An oscillating body oscillates due to:

Question # 2

The S.I unit of frequency is

Question # 3

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

Question # 4

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

Question # 5

The unit of spring constant is:

Question # 6

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

Question # 7

Free oscillations are always produced by:

Question # 8

The string of a simple pendulum should be:

Question # 9

The restoring force is always directed towards:

Question # 10

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

Question # 11

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

Question # 12

The graph showing the variation of displacement with time is a

Question # 13

Acceleration of body executing SHM is always directed towards

Question # 14

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

Question # 15

A body with frequency of would complete one vibration in:

Question # 16

Amplitude is the displacement of the vibrating body from:

Question # 17

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 18

Which of the following forces is responsible for SHM

Question # 19

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

Question # 20

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

Question # 21

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

Question # 22

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

Question # 23

In vibrational motion(SHM)

Question # 24

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

Question # 25

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 # 26

The unit of spring constant is

Question # 27

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

Question # 28

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 29

A body with frequency would complete one vibration in:

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The acceleration of body executing SHM is directly proportional to
A. Applied force
B. Amplitude
C. Displacement
D. Frictional force
2 Which one of the following is an example of SHM
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
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 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
5 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
6 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
7 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
8 The restoring force is ______ and opposite tot he applied force within ______
A. Equal, Elastic limit
B. Different, The walls of the laboratory
C. Different, Elastic limit
D. None of these
9 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
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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