If the gravitational potential at the earth's surface is de What is the gravitational potential at a height from earth's surface equal to its radius?

If the gravitational potential at the earth's surface is de What is th

1.	If the gravitational potential at the earth's surface is de What is the gravitational potential at a height from earth's surface equal to its radius?
Answer» `phi_e/2` `phi_e` `phi_e/4` `phi_e/3` Solution :`implies` Gravitationalpotential at DISTANCE R from the CENTRE of earth . `phi = -(Gme)/r` - Gme is constant `:. Phi =1/r` `:. Phi_2/phi_1 =r_1/r_2` here `r_1 = R_e and phi_1 = phi_e and r_2 = 2R_e` `:.phi_2 = phi_e xx (R_e)/(2Re) = (phi_e)/2`