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

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

Question # 2

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

Question # 3

Which of the following is an example of SHM(in ideal situations)

Question # 4

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

Question # 5

The unit of spring constant is:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The acceleration of body executing SHM is directly proportional to

Question # 10

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

Question # 11

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 # 12

The restoring force is ______ amd opposite to the applied force within _____:

Question # 13

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

Question # 14

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

Question # 15

The unit of spring constant is

Question # 16

Amplitude is the displacement of the vibrating body from:

Question # 17

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

Question # 18

When a body is vibrating, the displacement from mean position:

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

An object undergoes SHM. Its maximum equilibrium positions:

Question # 21

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

Question # 22

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 23

Velocity of particle executing SHM will be maximum at

Question # 24

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

Question # 25

In SHM, there is always a constant ratio between displacement if body and its:

Question # 26

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 # 27

The wave form of SHM is

Question # 28

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

Question # 29

An object in SHM will have maximum speed when its displacement from equilibrium position is:

Question # 30

A particle moving uniformly along circle its projection along diameter performs

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.
A. f
B. 2 f
C. 3 f
D. 1/2 f
2 The restoring force is ______ amd 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
3 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
4 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
5 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None
6 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
7 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
8 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
9 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:
A. 2500 MHz
B. 0.25 MHz
C. 2500 KHz
D. None of these
10 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

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