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Two planets at mean distance d(1) and d(...

Two planets at mean distance `d_(1)` and `d_(2)` from the sun and their frequencies are n and n respectively then

A

`n_1^2d_1^2=n_2d_2^2`

B

`n_2^2d_2^3=n_1^2d_1^3`

C

`n_1d_1^2=n_2d_2^2`

D

`n_1^2d_1=n_2^2d_2`

Text Solution

Verified by Experts

The correct Answer is:
B
`(T_1)/(T_2)=(r/(2r))^(3/2)rArr(n_2)/(n_1)=(d_1^(3/2))/(d_2^(3/2))`
`rArrn_2^2d_2^3=n_1^2d_1^3`
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