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CBSE
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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
MCQ Questions for CBSE Class 3 with Answers
MCQ Questions for CBSE Class 2 with Answers
MCQ Questions for CBSE Class 1 with Answers
Quiz
CBSE
/
Class 11
/
Physics
/
Oscillations
1.
damped oscilation the directions of the restoring force and the resistive force
are the same
are opposite
may be same or opposite
have no relation with each other
2.
The displacement y of a particle executing periodic motion is given by y = 4 cosĀ² (t/2) sin (1000t). This expression may be considered to be a result of superposition of the following number of harmonic motions.
two
three
four
five
3.
Spring is pulled down by 2 cm. What is amplitude of motion?
0 cm
6 cm
2 cm
cm
4.
One of the two clocks on the earth is controlled by a pendulum and other by a spring. If both the clocks are taken to the moon, then which clock will have the same time - period of the earth?
spring clock
pendulum clock
both
none
5.
When a particle performing uniform circular motion of radius 10 cm undergoes the SHM, what will be its amplitude?
10 cm
5 cm
2.5 cm
20 cm
6.
For a magnet of time period T magnetic moment is M, if the magnetic moment becomes one fourth of the initial value, then the time period of oscillation becomes.
Half of initial value
One fourth of initial value
Double of initial value
Four time initial value
7.
Time period of simple pendulum of length l and a place where acceleration due to gravity is g is T. what is the period of a simple pendulum of the same length at a place where the acceleration due to gravity is 1.029 is,
T
1.02 T
0.99 T
1.01 T
8.
In the case of forced oscillations, which of the following statements is not true?
frequency equals that of external periodic force
amplitude depends upon the damping coefficient
amplitude tends to infinity at resonance
higher the damping coefficient, lower is the amplitude at resonance
9.
The motion of a particle executing simple harmonic motion is given by X = 0.01 sin 100p (t + 0.05), where X is in metres ant t in second. The time period in second is
0.001
0.02
0.1
0.2
10.
In damped oscilation, the angular frequency of the oscillator
keeps on decreasing
keeps on increasing
emains the same
fluctuates
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