Q. 344.0( 3 Votes )
The radius of a w A. 2 times
B. 3 times
C. 6 times
D. 9 times
Answer :
Let radius and length of a wire be r and h respectively
Volume of a wire = 
If radius = 
and new length = H
Volume of the wire =
⇒ H = 9h i.e. 9 times
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