NEET | 2018Basic Maths and Units and DimensionsHard
Question
Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by on applying a force F, how much force is needed to stretch the second wire by the same amount ?
Options
A.
9F
B.
6F
C.
4F
D.
F
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