Q.
Which of the following statements is/are wrong?
I. Hollow shaft is much stronger than a solid rod of
same length and same mass.
II. Reciprocal of bulk modulus of elasticity is called
compressibility.
III. It is difficult to twist a long rod as compared to small rod.
IV. Poisson's ratio is the ratio of longitudinal strain to
lateral strain.
Mechanical Properties of Solids
Solution: