Physics MCQs

852 MCQs  (Page 31 of 86)

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Centripetal force performs_______________?
A. Maximum work
B. Minimum work
C. Negative work
D. No work
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When a body moves in a circle of radius r with linear speed V its centripetal force is_______________?
A. Mv/r2
B. Mv/r
C. Mv2/r
D. Mv2/r2
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Geostationary satellite completes one rotation around the earth in_______________?
A. 3 hours
B. 6 hours
C. 12 hours
D. 24 hours
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The radius of geostationary orbit from the centre of the earth is nearly______________?
A. 42000km
B. 36000km
C. 24000 km
D. 18000 km
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According to Einstein, the gravitational interaction is possible between_______________?
A. Material objects only
B. Material objects and electromagnetic radiation only
C. Electromagnetic radiations
D. None of the above
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One radian is equal to______________?
A. 67.3°
B. 57.3°
C. 87.3°
D. 60°
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The period of a circular motion is given by_______________?
A. T = πv
B. T = πw
C. T = 2πr
D. T = 2πr/v
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The direction of the linear velocity of a body moving in a circle is______________?
A. Along the axis of rotation
B. Along the tangent
C. Directed towards the centre
D. Directed away from the centre
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How many main frontiers of fundamental science ?
A. 1
B. 2
C. 3
D. 4
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One light year is equal to________________?
A. 9.5x1015m
B. 9.5x1015sec
C. 9.5x1015km
D. 9.5x1015cm
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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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