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A man weighs 80 kg on the surface of ear...

A man weighs `80 kg` on the surface of earth of radius `r`. At what height above the surface of earth his weight will be `40 kg`?

A

`0.31` times r

B

`0.414` times r

C

`0.51` times r

D

`0.61` times r

Text Solution

Verified by Experts

The correct Answer is:
B
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