Easy· Escape velocity and orbital velocity· +4 / −1
The escape velocity of a body on a planet is . The escape velocity of the body on another planet , whose density is four times and radius is half of the planet , is:
The time period of a satellite revolving around the earth in a given orbit is 7 hours. If the radius of the orbit is increased to three…
JEE Mains 2022 June 29 Shift 2 · Easy
The periods of two planets A and B are T_A=2T_B . Find the ratio of the radii of their revolution, r_Ar_B .
JEE Mains 2022, June 28 - Shift 1 · Easy