'Young's modulus' is defined as the ratio of
hydraulic stress and hydraulic strain
shearing stress and shearing strain
tensile stress and longitudinal strain
bulk stress and longitudinal strain
C.
tensile stress and longitudinal strain
A piece of copper is to be shaped into a conducting wire of maximum resistance. The suitable length and diameter are respectively
2L and d/2
L/2 and 2d
L and d
2L and d
The load versus elongation graph for four wires of the same materials is shown in the figure. The thinnest wire is represented by the line
OC
OD
OA
OB