Question
A wire is stretched 1 mm by a force of 1 KN. How far would a wire of the same material and length but of four times that diameter be stretched by the same force?
Answer: Option D
:
D
Y=FlA△l
Y,l and F are constants
Therefore △l∝1D2
△l2△l1=D21D22=116
Therefore △l2=116mm
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:
D
Y=FlA△l
Y,l and F are constants
Therefore △l∝1D2
△l2△l1=D21D22=116
Therefore △l2=116mm
Was this answer helpful ?
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