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

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

Question # 2

Which of the following forces is responsible for SHM

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The wave form of SHM is

Question # 10

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

Question # 11

Vibratory motion is always under

Question # 12

The unit of spring constant is

Question # 13

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 # 14

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

Question # 15

The string of a simple pendulum should be:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
2 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
3 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
4 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
5 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
6 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
7 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
8 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
9 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
10 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration

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