If `a` and `b` are the nearest and farthest distances of a planet from the sun and the planet is revolving in an elliptical orbit, then square of the time period of revolution of that planets is directly proportional to
A. `a^(3)`
B. `b^(3)`
C. `(a+b)^(3)`
D. `(a-b)^(3)`

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1 Answers

Correct Answer - b
`T^(2) prop ((a+b)/(2))^(3) prop (a+b)^(3)`.

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