Assuming that a planet goes round the sun in a circular orbit of radius `0.5AU` determine the angle of maximum elongation for the planet and its distance from the earth when elongation is measured.

Assuming that the orbit of the planet Mercury around the sun to be a circle, Copernicus detrmined the orbital radius to be 0.38AU . From this determine the angle of maximum elongation for Mercury and its distance from the earth when the elongation is maximum .

Assume that the earth goes round the sun in a circular orbit with a constant speed of 30 km/s

Assume that the earth goes round the sun in a circular orbit with a constant speed of 30 km/s

If a planet of mass .m. is revolving around the sun in a circular orbit of radius .r. with time period T, then the mass of the sun is

If a planet of mass m is revolving around the sun in a circular orbit of radius r with time period, T then mass of the sun is

Assume that the earth moves around the sun in a circular orbit of radius R and there exists a planet which also moves around the sun in a circular orbit with an angular speed twice as large as that of the earth. The radius of the orbit of the planet is