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Shear Modulus

Two wires A a...

Question

Two wires A and B are made of same material. The wire A has a length I and diameter r while the wire B has a length 2l and diameter r/2. If the two wires are streched by the same force, the elongation in A divided by the elongation in B is

A

1/8

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B

1/4

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C

4

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D

8

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Solution

The correct option is B 1/4
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Q. Two wires A and B are made of same material. The wire A has a length l and diameter r while the wire B has a length 2l and diameter r/2. If the two wires are stretched by the same force, the elongation in A divided by the elongation in B is
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