Gas escapes from the surface of a planet because it acquires an escape velocity. The escape velocity will depend on which of the following factors : I. Mass of the planet II. Mass of the particle escaping III. Temperature of the planet IV. Radius of the planet Select the correct answer from the codes given below :
(a) I and II (b) II and IV
(c) I and IV (d) I, III and IV
Answer: c
(4)