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Online Tests
ECAT Pre General Science Physics Chapter 7 Oscillations Online Test MCQs With Answers
Question # 1
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 # 2
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 # 3
The wave form of SHM is
Choose an answer
Pulsed wave
Square wave
Triangular waved
Sine wave
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Question # 4
Velocity of particle executing SHM will be maximum at
Choose an answer
Extreme position
Mean position
b/w mean and extreme
None
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Question # 5
SHM is type of ______ motion
Choose an answer
Vibratory
Linear
Circular
None
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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
The restoring force is always directed towards:
Choose an answer
Rest position
Equilibrium position
Mean position
All of them
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Question # 8
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 # 9
Amplitude in SHM is equivalent to_____ in circular motion:
Choose an answer
Diameter
Radius
Circumference
None of these
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Question # 10
Which of the following is an example of SHM(in ideal situations)
Choose an answer
Motion of simple pendulum
Motion of horizontal spring man system
Motion of violin string
All of these
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Question # 11
If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:
Choose an answer
250 N m
-1
25 N m
-1
2.5 N m
-1
None of these
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Question # 12
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 # 13
In vibrational motion(SHM)
Choose an answer
P.E remains conserved
Average K.E remain constant
Neither P.E nor K.E remains constant
Total energy remains constant
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Question # 14
The restoring force is ______ amd opposite to the applied force within _____:
Choose an answer
Equal, elastic limit
Different, the walls of the laboratory
Different, elastic limit
None of these
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Question # 15
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 # 16
A body with frequency of would complete one vibration in:
Choose an answer
f seconds
1/f seconds
1 second
f
2
second
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Question # 17
The SI unit of spring constant is identical with that of:
Choose an answer
Force
Surface tension
Pressure
Loudness
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Question # 18
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 # 19
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 # 20
If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:
Choose an answer
2500 MHz
0.25 MHz
2500 KHz
None of these
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Question # 21
The maximum distance of body from mean position when body is executing SHM is called
Choose an answer
Time period
Displacement
Amplitude
Frequency
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Question # 22
A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:
Choose an answer
1.5 sec
2.0 sec
2.3 sec
2.5 sec
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Question # 23
Amplitude in SHM is equivalent to ______ in circular motion
Choose an answer
Diameter
Radius
Circumference
None of these
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Question # 24
If mass of 10 gm is suspended from a spring of K=0.8 Nm
-1
then the extension will be:
Choose an answer
10 cm
1 m
10 mn
None of these
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Question # 25
The body oscillates due to _____ accelerates and overshoots the rest position due to______,:
Choose an answer
Applied force, inertial
Restoring force, friction
Frictional force, inertial
Restoring force, inertial
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Question # 26
A particle moving uniformly along circle its projection along diameter performs
Choose an answer
Linear motion
Projectile motion
SHM
Rotatory motion
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Question # 27
A spring of constant k = 0.4 N m
-1
is to be extended through 10 cm at a place where g = 10 m sec
-2
. The mass to be suspended should be:
Choose an answer
4 gms
0.4 gm
40 gms
None of these
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Question # 28
The displacement of body executing SHM is
Choose an answer
x
o
coswt
x
o
sinwt
x
o
sin
2
wt
Both A, B
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Question # 29
The acceleration of body executing SHM is directly proportional to
Choose an answer
Applied force
Amplitude
Displacement
Frictional force
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Question # 30
If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:
Choose an answer
k/2
2 k
4 k
None of these
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