The average radii of orbits of mercury and earth around the sun are `6xx10^(7)` km and `1.5xx10^(8)` km respectively. The ratio of their orbital speeds will be :-

The radius of the earth and the radius of orbit around the sun are 6371 km and 149 xx 10^(6) km respectively. The order of magnitude of the diameter of the orbit is greater than that of earth by

A planet is revolving around the sun as shown in the figure. The radius vectors joining the sun and the planet al points A and B are 90 xx 10^6 km and 60 xx 10^6 km respectively. The ratio of velocities of the planet at A and B when its velocities make 30^@ and 60^2 with major axis of the orbit is

A planet is revolving around the sun as shown in the figure. The radius vectors joining the sum and the planet at points A and B are 90 times 10^6 km and 60 times 10^6 km , respectively. The ratio of velocities of the planet at the points A and B when its velocities makes angle 30^@ and 60^@ with major axis of the orbit is

The mean orbital radius of the Earth around the Sun is 1.5 xx 10^8 km . Estimate the mass of the Sun.

The mean orbital radius of the Earth around the Sun is 1.5 xx 10^8 km . Estimate the mass of the Sun.

The maximum and minimum distances of the Earth from the Sun respectively are 152xx10^(6) km and 94.5xx10^(6) km. the Sun is at one focus of the elliptical orbit. Find the distance from the sun to the other focus.

The mean radius of the earth's orbit round the sun is 1.5xx10^(11) . The mean radius of the orbit of mercury round the sun is 6xx10^(10)m . The mercury will rotate around the sun in

The mean radius of the earth's orbit round the sun is 1.5xx10^(11) . The mean radius of the orbit of mercury round the sun is 6xx10^(10)m . The mercury will rotate around the sun in