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Physics ECAT Pre Engineering Chapter 7 Oscillations Online Test MCQs With Answers
Question # 1
Amplitude in SHM is equivalent to ______ in circular motion
Choose an answer
Diameter
Radius
Circumference
None of these
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Question # 2
An object undergoes SHM. Its maximum equilibrium positions:
Choose an answer
Maximum
Half of its maximum value
Zero
None
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Question # 3
When quarter of a circle is completed, phase of vibration is:
Choose an answer
90
°
180
°
45
°
360
°
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Question # 4
The S.I unit of frequency is
Choose an answer
Vibrations s
-2
Ms
-1
Hertz
s
-1
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Question # 5
The body oscillates due to ______ accelerates and overshoots the rest position due to _____:
Choose an answer
Applied force , inertia
Restoring force, friction
Frictional force, inertia
Restoring force, inertia
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Question # 6
Which of the following forces is responsible for SHM
Choose an answer
Applied force
Restoring force
Fractional force
Elastic force
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Question # 7
When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
Choose an answer
Increases
Decreases
Remains constant
None of these
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Question # 8
If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
Choose an answer
K/2
2 K
4 K
None of these
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Question # 9
Second's pendulum is the pendulum whose time period is:
Choose an answer
1 second
2 second
3 second
None of these
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Question # 10
When a body is vibrating, the displacement from mean position:
Choose an answer
Increases with time
Decreases with time
Changes with time
None of these
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Question # 11
The time period of a simple pendulum is independent of its:
Choose an answer
Length
Mass
Value of g
Both A and B
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Question # 12
A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:
Choose an answer
Circular motion, circumference
Vibrator, chord
SHM, diameter
SHM, circumference
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Question # 13
If a mass of 10 gm is suspended from a spring of k = 9.8 Nm
-1
, then the extension will be:
Choose an answer
1 cm
1 m
10 mm
None of these
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Question # 14
The graph showing the variation of displacement with time is a
Choose an answer
Sine curve
Straight line
Parabola
None of these
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Question # 15
Hertz is unit of:
Choose an answer
Time period
Displacement
Amplitude
Frequency
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Question # 16
A particle executes SHM with frequency. The frequency with which its K.E oscillates is
Choose an answer
f/2
2f
f
4f
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