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Text Solution

`(R)/(4)``(R)/(2)``(3R)/(4)`R

Answer :

DSolution :

`g=g(R/(R+h))^(2),(g)/(4)implies g(R/(R+h))^(2)implies(1)/(4)=(R/(R+h))^(2)` `implies(1)/(2)=(R)/(R+h)` <br> R+h = 2R `:.` h=R