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Young's modulus of brass and steel are 1...

Young's modulus of brass and steel are `10 xx 10^(10) N//m^(2)` and `2 xx 10^(11) N//m^(2)`, respectively. A brass wire and a steel wire of the same length are extended by `1 mm` under the same force. The radii of the brass and steel wires are `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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