Gravitation - Result Question 4
4. The period of revolution of planet A around the Sun is 8 times that of B. The distance of A from the Sun is how many times greater than that of B from the Sun?
[1997]
(a) 2
(b) 3
(c) 4
(d) 5
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Answer:
Correct Answer: 4. (a)
Solution:
- (a) Let
and be time period of and about sun.
According to Kepler’s Law,