ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

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

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ECAT Physics Chapter 7 Oscillations

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Question # 1

When a body is vibrating, the displacement from mean position

Question # 2

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

Question # 3

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 # 4

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

Question # 5

Free oscillations are always produced by:

Question # 6

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

Question # 7

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

Question # 8

Acceleration of body executing SHM is always directed towards

Question # 9

Hertz is unit of:

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

The restoring force is always directed towards:

Question # 13

A particle moving uniformly along circle its projection along diameter performs

Question # 14

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

Question # 15

Which one of the following is an example of SHM:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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
4 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
5 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
6 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:
A. 1.5 sec
B. 2.0 sec
C. 2.3 sec
D. 2.5 sec
7 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
8 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
10 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

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