A) increase in length per unit length per unit applied stress
B) increase in volume per unit volume per unit applied stress
C) lateral displacement per unit length per unit applied stress
D) change in cross-sectional area per unit area per unit applied stress
Correct Answer: B
Solution :
Bulk modulus is defined by \[B=\frac{-\Delta P}{\Delta V/V}\] where,\[\Delta P\]is equivalent to stress.\[\Delta V/V\]is change in volume per unit volume. Thus, we can define stress as increase in volume per unit volume per unit applied stress.
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