Figure shows the elliptical path of a planet about the sun. The two shaded parts have equal area. If `t_1 and t_2` be the time taken by the planet to go from a to b and from c to d respectively

Options

A. `t_(1) lt t_(2)`
B. `t_(1) = t_(2)`
C. `t_(1) gt t_(2)`
D. insufficient information ot deduce the relation between `t_(1) and t_(2)`

Answer

B

Explanation

Since areas are equal , when a planet revolves around the sun, areal velocity is constant ie,
`(d vec(A))/(dt) ` = constant or `t_(1) = t_(2)`