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Two bars A and B of circular cross secti...

Two bars `A` and `B` of circular cross section, same volume and made of the same material, are subjected to tension. If the diameter of `A` is half that of `B` and if the force applied to both the rod is the same and it is in the elastic limit, the ratio of extension of `A` to that of `B` will be

A

16

B

15

C

8

D

24

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The correct Answer is:
C
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