Gravitation Question 268

Question: When a satellite going round the earth in a circular orbit of radius r and speed v loses some of its energy, then r and v change as [JIPMER 2002; EAMCET 2000]

Options:

A) r and v both with increase

B) r and v both will decrease

C) r will decrease and v will increase

D) r will decrease and v will decrease

Show Answer

Answer:

Correct Answer: C

Solution:

$ [B.E.=-\frac{GMm}{r}.] $

If B.E. decreases then r also decreases and v increases as $ [v\propto \frac{1}{\sqrt{r}}] $



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