JEE Mains · Physics · STD 11 - 7. gravitation
Suppose that the angular velocity of rotation of earth is increased. Then, as a consequence.
- A There will be no change in weight anywhere on the earth
- B Weight of the object, everywhere on the earth, wild decrease
- C Weight of the object, everywhere on the earth, will increase
- D Except at poles, weight of the object on the earth will decrease
Answer & Solution
Correct Answer
(D) Except at poles, weight of the object on the earth will decrease
Step-by-step Solution
Detailed explanation
With rotation of earth or latitude, acceleration due to gravity vary as \(g' = g - {\omega ^2}R\,\,{\cos ^2}\,\phi \) Where \(\phi \) is latitude, there will be no change in gravity at poles as \(\phi = 90^o\) At all other points as \(\omega \) increases \(g'\) will decreases…
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