Question
The ratio of diameters of two wires of same materials is n : 1.The length of each wire is 4 m. On applying the same load, the increase in length of thin wire will be (n>1)
Answer: Option A
:
A
Y=FA△ll=FlA△l
or Y=FlX4πD2X△lor△l∝1D2or△L2△L1=D21D21=n21
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:
A
Y=FA△ll=FlA△l
or Y=FlX4πD2X△lor△l∝1D2or△L2△L1=D21D21=n21
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