At what depth below the surface of the earth, acceleration due to gravity g will be half its value 1600 km above the surface of the earth
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
A
Radius of earth R = 6400 km ∴ ∴ 
Acceleration due to gravity at a height h
At depth ' d ' value of acceleration due to gravity
(According to problem)
⇒ ⇒ 
By solving we get 
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