ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

The string of a simple pendulum should be:

Question # 2

Velocity of particle executing SHM will be maximum at

Question # 3

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

Question # 4

The unit of spring constant is:

Question # 5

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

Question # 6

Acceleration of body executing SHM is always directed towards

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

The restoring force is _____ and opposite to the applied force within ______,:

Question # 12

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

Question # 13

Amplitude is the displacement of the vibrating body from:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
2 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
3 If time period of a pendulum is doubled by increasing its length, then its frequency will
A. Also be doubled
B. Become half
C. Become one fourth
D. Becomes four times
4 The acceleration of body executing SHM is directly proportional to
A. Applied force
B. Amplitude
C. Displacement
D. Frictional force
5 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
6 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
7 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None
8 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
9 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
10 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness

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