Question

Consider the following two statements A and B and identify the correct answer.
A) The product of bulk modulus of elasticity and compressibility is one.
B) Tangential stress applied on the body only produes change in shape but not in size.

• A. Both A & B are true
• B. A is true but B is false
• C. A is false but B is true
• D. Both A & B are false

Answer 1

The correct option is A Both A & B are true

Bulk modulus of elasticity is denoted by $K$. And bulk modulus of compressibility is defined as $1/K$. So the product of them is defined as 1. Tangential stress applied to a body only shears it. It only distorts the body and changes its shape and not the size.