The radius of a piece of wire is decreased to one -half.If the volume remains the same , then the length will increase
2 times
3 times
4 times
5 times
Show the explanation plz
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volume = pie. r.r.h
= pie. (1/4).r.r h
as volume is same
so take h as,4 h
so 4 times
= pie. (1/4).r.r h
as volume is same
so take h as,4 h
so 4 times
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