A planet revolves round the sun in an elliptical orbit of semi minor and semi major axes `x` and `y` respectively. Then the time period of revolution is proportional to
A. `(x+y)^(3//2)`
B. `(y-x)^(3//2)`
C. `x^(3//2)`
D. `y^(3//2)`

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1 Answers

Correct Answer - a
`T^(2) prop ((x+y)/(2))^(3)`
`T prop (x+y)^(3//2)`

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