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Question

Calculate the modulus of elasticity for an applied force of 200 N on 0.1 m2 area resulting in change in length of a chain of 2 m by 0.004 m.


A

108 N per m2

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B

104 N per m2

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C

106 N per m2

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D

106 N per m2

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Solution

The correct option is C

106 N per m2


We know that, Modulus of elasticity = F/Ae/L

Given that, F = 200 N, A = 0.1 m2, e = 0.004 m, L = 2 m

So, Modulus of elasticity = 200/0.10.004/2 = 20000.002 = 106 N per m2


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