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A and B are two steel wires and the radius of A is twice that of B. If they are stretched by the same load, then the stress on B is(A) four times that of A (B) two times that of A (C) three times that of A (D) same as that of A |
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Answer» (A) Four times that of A Stress ∝ \(\frac{1}{r^2}\) |
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