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

Question # 2

Vibratory motion is always under

Question # 3

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

Question # 4

If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:

Question # 5

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

Question # 6

Amplitude is the displacement of the vibrating body from:

Question # 7

Which of the following forces is responsible for SHM

Question # 8

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

Question # 9

Amplitude in SHM is equivalent to ______ in circular motion

Question # 10

The unit of spring constant is:

Question # 11

The time taken to complete one vibration is called:

Question # 12

Velocity of particle executing SHM will be maximum at

Question # 13

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

Question # 14

Which of the following is an example of SHM(in ideal situations)

Question # 15

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:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
2 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
3 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
4 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
5 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
6 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
7 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
8 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
9 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
10 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1

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