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

The string of a simple pendulum should be:

Question # 2

The unit of spring constant is:

Question # 3

When a body is vibrating, the displacement from mean position

Question # 4

The time taken to complete one vibration is called:

Question # 5

Vibratory motion is always under

Question # 6

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

Question # 7

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 8

In vibrational motion(SHM)

Question # 9

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

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

SHM is type of ______ motion

Question # 12

The S.I unit of frequency is

Question # 13

Which one of the following is an example of SHM:

Question # 14

Amplitude in SHM is equivalent to ______ in circular motion

Question # 15

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
2 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
3 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
4 The body oscillates due to ______ accelerates and overshoots the rest position due to _______
A. Applied force, Inertia
B. Restoring force, Friction
C. Frictional force, Inertia
D. Restoring force, Inertia
5 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
6 To and from motion of a body about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
7 The time taken to complete one vibration is called:
A. Frequency
B. Amplitude
C. Time
D. Time period
8 The restoring force is ______ and opposite tot he applied force within ______
A. Equal, Elastic limit
B. Different, The walls of the laboratory
C. Different, Elastic limit
D. None of these
9 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
10 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency

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