There are two planets. The ratio of radius of the two planets is k but ratio of acceleration due to gravity of both planets is g . What will be the ratio of their escape velocity ?
Answer & explanation
Correct answer: option 1
\(v_e = \sqrt{2gR}\)
\(\frac{v_{e_1}}{v_{e_2}} = \sqrt{\frac{R_1 g_1}{R_2 g_2}}\)
\(\frac{v_{e_1}}{v_{e_2}} = \sqrt{kg}\)