Q. 15 B5.0( 6 Votes )

Let us write whet

Answer :

(i) False.


The volume of a sphere is directly proportional to the cube of the radius. So if the radius is doubled, volume becomes 8 times.


(ii) True.



Let the radius of two spheres be r1 and r2;


Ratio of surface area



r1:r2 = 2:3


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