ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

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

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Physics ECAT Pre Engineering Chapter 7 Oscillations

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Question # 1

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

Question # 2

A particle moving uniformly along circle its projection along diameter performs

Question # 3

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

Question # 4

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

Question # 5

Which one of the following is an example of SHM

Question # 6

The displacement of body executing SHM is

Question # 7

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

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

The S.I unit of frequency is

Question # 10

The restoring force is always directed towards:

Question # 11

Acceleration of body executing SHM is always directed towards

Question # 12

The SI unit of spring constant is identical with that of:

Question # 13

The string of a simple pendulum should be:

Question # 14

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

Question # 15

The acceleration of body executing SHM is directly proportional to

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:
A. 10 cm
B. 1 m
C. 10 mn
D. None of these
2 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
3 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
4 If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:
A. 1 cm
B. 1 m
C. 10 mm
D. None of these
5 If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:
A. k/2
B. 2 k
C. 4 k
D. None of these
6 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
7 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
8 The body oscillates due to _____ accelerates and overshoots the rest position due to______,:
A. Applied force, inertial
B. Restoring force, friction
C. Frictional force, inertial
D. Restoring force, inertial
9 An object undergoes SHM. Its maximum equilibrium positions:
A. Maximum
B. Half of its maximum value
C. Zero
D. None
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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