A planet has twice the radius but the mean density is 1/4 th as compared to earth. What is the ratio of escape velocity from earth to that from the planet
A planet has twice the radius but the mean density is 1/4 th as compared to earth. What is the ratio of escape velocity from earth to that from the planet
(a) 3 : 1 (b) 1 : 2
(c) 1 : 1 (d) 2 : 1
Answer: c
(7)