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

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

Question # 2

A particle moving uniformly along circle its projection along diameter performs

Question # 3

Acceleration of body executing SHM is always directed towards

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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 # 8

An oscillating body oscillates due to:

Question # 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:

Question # 10

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

Question # 11

Hertz is unit of:

Question # 12

Amplitude is the displacement of the vibrating body from:

Question # 13

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

Question # 14

The SI unit of spring constant is identical with that of

Question # 15

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 # 16

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

Question # 17

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

Question # 18

Free oscillations are always produced by:

Question # 19

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

Question # 20

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

Question # 21

SHM is type of ______ motion

Question # 22

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

Question # 23

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

Question # 24

The graph showing the variation of displacement with time is a:

Question # 25

The string of a simple pendulum should be:

Question # 26

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

Question # 27

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

Question # 28

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

Question # 29

The maximum distance of body from mean position when body is executing SHM is called

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
2 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
3 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
4 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these
5 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
6 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration
7 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
8 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
9 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
10 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest

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