CBSE - IX - Physics - Gravitation
Find the height above the surface of the earth where acceleration due to gravity is one-fourth.
use the formula g' =g (1-2h / R)
where g' is the gravity above height h,
g,is the acceleration due to gravity on surface of earth,R is the radius of the earth,
h,is height above the earth surface.
put the value g' in terms of g and find the answer.
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