Physics MCQs

852 MCQs  (Page 23 of 86)

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A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely, the time period is_________________?
A. Infinite
B. T/g
C. Zero
D. G/t
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The energy of SHM is maximum at_______________?
A. Mean position
B. Extreme position
C. In between mean and extreme
D. All positions during shm
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The product of the frequency and time period is equal to_________________?
A. 1
B. 2
C. 3
D. 4
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The length of the second pendulum is_________________?
A. 100 cm
B. 99 cm
C. 99.2 cm
D. 98 cm
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The displacement of SHM is written as X = X`sinθt if the displacement is written by X = Xθ sont then phase constant will be equal to_______________?
A. 0°
B. 45°
C. 90°
D. 180°
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For what displacement the P.E becomes 1/4 of its maximum value ?
A. X = x’
B. X = x’/2
C. X = x’/4
D. X = x(2)’/2
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Which one does not work according to resonance ?
A. T.v
B. Radio
C. Microwave oven
D. Bulb
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The restoring force acting on the simple pendulum is given by_______________?
A. Mg sin θ
B. Mg sin θ
C. Mg cos θ
D. Mg cos θ
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The phase of SHM describes________________?
A. Displacement only
B. The direction of motion only
C. Both displacement and direction of motion
D. Neither displacement nor direction of motion
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The sharpness of resonance is__________________?
A. Directly proportional to the damping force
B. Inversely proportional to the damping force
C. Equal to the square of damping force
D. Equal to the square of damping force
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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