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

An object undergoes SHM. Its maximum equilibrium positions:

Question # 2

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

Question # 3

A body with frequency would complete one vibration in:

Question # 4

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 # 5

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

Question # 6

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

Question # 7

The graph showing the variation of displacement with time is a:

Question # 8

In vibrational motion(SHM)

Question # 9

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

Question # 10

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 11

An angle of 180° in circular motion is equivalent to ______ in SHM.

Question # 12

Amplitude is the displacement of the vibrating body from:

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
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 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
4 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
5 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
6 Which one of the following is an example of SHM
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
7 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
8 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
9 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
10 Amplitude is the displacement of the vibrating body from:
A. One extreme position to the other extreme position
B. Mean position any one extreme position
C. Both A and B are correct
D. None of these

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