Question

. A planet moves around the sun in nearly circular orbit. Its period of revolution T depends upon (i) radius of the orbit (ii) mass M of the sun (iii) the gravitational constant G Show dimensionally that

Answer 1

planet moves around the sun in nearly circular orbit . its period of revolution T depends upon radius of the orbit ,mass of the sun and gravitational constant. Hence, the square of time period is directly proportional to the cube of radius of the orbit .