Gravitation Question 138

Question: 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 : Mass of the planet Mass of the particle escaping Temperature of the planet Radius of the planet Select the correct answer from the codes given below: [SCRA 1994]

Options:

A)I and II

B) II and IV

C) I and IV

D) I, III and IV

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Answer:

Correct Answer: C

Solution:

$ [v_{e}=\sqrt{\frac{2GM}{R}}] $ i.e. escape velocity depends upon the mass and radius of the planet.



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