ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

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

The restoring force is always directed towards:

Question # 2

SHM is type of ______ motion

Question # 3

An object undergoes SHM. Its maximum equilibrium positions:

Question # 4

The restoring force is ______ and opposite tot he applied force within ______

Question # 5

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 # 6

When a body is vibrating, the displacement from mean position

Question # 7

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

Question # 8

The unit of spring constant is:

Question # 9

Vibratory motion is always under

Question # 10

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

Question # 11

Hertz is unit of:

Question # 12

A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:

Question # 13

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

Question # 14

An oscillating body oscillates due to:

Question # 15

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

Question # 16

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

Question # 17

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 18

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

Question # 19

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 20

A body with frequency of would complete one vibration in:

Question # 21

Which one of the following is an example of SHM:

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

Question # 26

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

Question # 27

The string of a simple pendulum should be:

Question # 28

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

Question # 29

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

Question # 30

Acceleration of body executing SHM is always directed towards

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:
A. 4 gms
B. 0.4 gm
C. 40 gms
D. None of these
2 The body oscillates due to ______ accelerates and overshoots the rest position due to _______
A. Applied force, Inertia
B. Restoring force, Friction
C. Frictional force, Inertia
D. Restoring force, Inertia
3 If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:
A. k/2
B. 2 k
C. 4 k
D. None of these
4 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
5 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
6 The time taken to complete one vibration is called:
A. Frequency
B. Amplitude
C. Time
D. Time period
7 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None
8 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
9 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
10 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

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