If the angular speed of the earth is doubled, the value of acceleration due to gravity (g) at the north pole

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Doubles

Becomes half

Remains same

Becomes zero

answer is C.

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Detailed Solution

Acceleration due to gravity at poles is independent of the angular speed of earth.At pole λ=900 ⇒gλ=g-Rω2cos2λ=g-Rω2cos290=g-0=g

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