A planet moves around the sun in nearly circular orbit. Its period of revolution
Channel: Doubtnut
Date: 2020-08-23

A planet moves around the sun in nearly circular orbit. Its period of revolution 'T' depends upon :  (i) radius 'r' or orbit (ii) mass 'M' of the sum and  (iii) the gravitational constant G. Show dimensionally that `T^(2) prop r^(2)`.