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

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

Question # 2

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

Question # 3

The graph showing the variation of displacement with time is a

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The wave form of SHM is

Question # 8

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 # 9

A particle moving uniformly along circle its projection along diameter performs

Question # 10

An object undergoes SHM. Its maximum equilibrium positions:

Question # 11

The acceleration of body executing SHM is directly proportional to

Question # 12

The displacement of body executing SHM is

Question # 13

The unit of spring constant is:

Question # 14

An oscillating body oscillates due to:

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
4 The acceleration of body executing SHM is directly proportional to
A. Applied force
B. Amplitude
C. Displacement
D. Frictional force
5 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
6 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
7 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
8 When a body is vibrating, the displacement from mean position:
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
9 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
10 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum

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