Q. 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
Explanation
(c) $v_{e} = \sqrt{\frac{2GM}{R}\ }i.e.$ escape velocity depends upon the mass and radius of the planet
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.