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

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

Question # 2

Which one of the following is an example of SHM:

Question # 3

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

Question # 4

Which of the following forces is responsible for SHM

Question # 5

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 6

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 # 7

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:

Question # 8

A body with frequency would complete one vibration in:

Question # 9

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 10

Acceleration of body executing SHM is always directed towards

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

SHM is type of ______ motion

Question # 15

Velocity of particle executing SHM will be maximum at

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these
2 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
3 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
4 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
5 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
6 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
7 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
8 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 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
10 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°

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