The Young’s modulus of brass and steel are 10×1010N m−2 and 2× 1011 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 RB and Rs respectively. Then

The Young’s modulus of brass and steel are 10×1010N m−2 and 2× 1

1.	The Young’s modulus of brass and steel are 10×1010N m−2 and 2× 1011 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 RB and Rs respectively. Then
Answer» The Young’s modulus of brass and steel are $10 \times 10^{10} N m^{- 2} a n d 2 \times 10^{11} N m^{- 2}$ 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

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The Young’s modulus of brass and steel are 10×1010N m−2 and 2× 1011 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 RB and Rs respectively. Then

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