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The Young's modulus of brass and steel a...

The Young's modulus of brass and steel are respectively `10 xx 10^(10) N//m^(2)`. And `2 xx 10^(10) N//m^(2)` A brass wire and a steel wire of the same length are extended by 1 mm under the same force, the radii of brass and steel wires ar `R_(B) and R_(S)`respectively. Then

A

`R_(S)=sqrt(2)R_(B)`

B

`R_(S)=(R_(B))/(sqrt(2))`

C

`R_(S)=4R_(B)`

D

`R_(S)=(R_(B))/(4)`

Text Solution

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The correct Answer is:
B
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