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Grade: 9

                        

The mean distance of two planets A and B from sun is 2 and 4 times distance of Earth from the sun respectively . Find the ratio of time taken by two planets to make one revolution around the sun ?

3 years ago

Answers : (1)

Arun
24742 Points
							
As we know,
From kepler law,
T^2= k* r^3
 
Hence
(T1/T2)^2 = (r1/r2)^3
(T1/T2)^2  = (2r/4r)^3
T1/T2 = \sqrt(1/8)
T1/T2 = 1/2\sqrt2
3 years ago
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