The value of acceleration due to gravity
(a) is same on equator and poles
(b) is least on poles
(c) is least on equator
(d) increases from pole to equator
1 Answers
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What do you mean by acceleration due to gravity?
When an object falls towards the ground from a height, then its velocity changes during the fall. This changing velocity produces acceleration in the object. This acceleration is known as...
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Give reasons: (i) Wet clothes take longer time to dry on a humid day. (ii) Amount of insolation decreases from equator torwards poles?
(i) On a humid day the air is full of water vapour. Hence, evaporation is very slow. This is the reason why wet clothes take longer time to dry on...
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A train A runs from east to west and another train B of the same mass runs from west to east at the same speed along the equator.
The correct answer is (a) F1 > F2. Explanation: The earth spins from west to east at equator. To maintain the same speed the first train has to press the track more than normal as...
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The acceleration of moon with respect to earth is 0.0027 m/s^2 and the acceleration of an apple falling on earth's
(b) 0.0027 m/s2 Explanation: When moving in the orbit, the moon balances the force on it by the earth with its uniform circular motion in the orbit resulting in centrifugal force. When...
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If the acceleration due to gravity at the surface of theearth is g, the work done in slowly lifting a body of mass m from the earth's
The correct answer is (a) 1/2 mgR EXPLANATION: The distance of the body from the center of the earth at a height R from the earth's surface = 2R. The acceleration...
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If gE and gM are the accelerations due to gravity on the surfaces of the earth and the moon respectively.
(b) : Since electronic charge (1.6 × 10–19C) universal constant. It does not depend on g. Therefore,Electronic charge on the moon = electronic charge on the earth or (electronic charge on the...
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The frigid Zone lies near (i) the Poles (ii) The equator (iii) The tropic of Cancer
(i) The Poles
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Amount of insolation decreases from equator towards poles?
Insolation refers to the incoming solar power intercepted by the earth. Sunlight falls almost vertically on the equator, whereas it falls at some angles on the poles. So amount of...
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A train A runs from east to west and another train B of the same mass runs from west to east at the same speed along the equator,
The correct answer is (a) F1 > F2. Explanation: The earth spins from west to east at equator. To maintain the same speed the first train has to press the track more than normal...
1 Answers 1 views
If the acceleration due to gravity at the surface of earth is g,
(a) The radius of the earth is 1/2mgR.
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