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Which of the following statements are correct?
a) A wire is stiffer if Y is large
b) A wire is stiffer if Y is small
c) A wire is stronger if the breaking stress is large
d) A wire is stronger if the breaking stress is small

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b,c

b,d

a,d

a,c

answer is D.

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Detailed Solution

Stiffness of wire can be directly related to Young's Modulus of wire. Hence if the material having large young's Modulus it will be more stiffer.

If the breaking stress is large then large force is required to break the wire, hence it will be strong.

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