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Grade: 6
        
Suppose the gravitational force varies inversely as the nth power of distance. Then the time period of a planet in circular orbit of radius 'R' around the sun will be proportional to
 
(a) Rn
(b) R(n-1/2)
(c) R(n+1/2)
(d) R(n-2/2)
4 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
471 Points
							

(c) F = KR-n = MR?2 ? ?2 = KR-(n+1)

or ? = KR

2p/T ? R-(n+1/2)

? T ? R+(n+1)/2
4 years ago
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