A planet moving along an elliptical orbi...

A planet moving along an elliptical orbit is closest to the sun at a distance `r_1` and farthest away at a distance `r_2`. If `v_1` and `v_2` are the linear velocities at these points respectively, then the ratio `v_1/v_2` is

`r_1/r_2`

`r_2/r_1`

`(r_2/r_1)^2`

`(r_1/r_2)^2`

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