1.

A satellite A of mass m is at a distance of r from the centre of the earth. Another satellite B of mass 2m is at a distance of 2r from the earth's centre. Their time periods are in the ratio of                 [CBSE PMT 1993]

A. 1 : 2    
B.             1 : 16
C.             1 : 32  
D.             \[1:2\sqrt{2}\]
Answer» E.


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