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

In vibrational motion(SHM)

Question # 2

The displacement of body executing SHM is

Question # 3

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 4

Amplitude is the displacement of the vibrating body from:

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

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

Question # 7

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

Question # 8

The wave form of SHM is

Question # 9

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

Question # 10

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

Question # 11

A body with frequency of would complete one vibration in:

Question # 12

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

Question # 13

Which one of the following is an example of SHM:

Question # 14

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

Question # 15

A body with frequency would complete one vibration in:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 In vibrational motion(SHM)
A. P.E remains conserved
B. Average K.E remain constant
C. Neither P.E nor K.E remains constant
D. Total energy remains constant
2 Which of the following quantity for particle executing SHM is non-zero at mean position
A. Force
B. Acceleration
C. Velocity
D. Displacement
3 Which of the following is an example of SHM(in ideal situations)
A. Motion of simple pendulum
B. Motion of horizontal spring man system
C. Motion of violin string
D. All of these
4 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
5 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
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 a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:
A. 250 N m-1
B. 25 N m-1
C. 2.5 N m-1
D. None of these
8 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
9 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
10 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these

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