Question Detail

PHY 104 Wave and sound Objective Question

Question

How is the bulk modulus of elasticity (B) described in relation to a fluid's properties, in the context of sound waves?
Options
A A measure of the fluid's mass
B A measure of the fluid's volume
C A measure of the fluid's resistance to compression
Correct Answer
D A measure of the fluid's temperature
Correct Answer

Option C is the correct answer.

Detailed Explanation

On page 13, it states: 'The term on the right is the bulk modulus of elasticity, B, of the fluid.' The context of its derivation involves pressure changes (Δρ) and fractional volume changes (ΔV/V), indicating its role in resisting compression. It further supports this by stating, 'Thus, the more rigid a solid, the higher the bulk modulus and the faster the velocity of sound in it.'

Hint

Consider the physical meaning of 'bulk modulus' and its role in wave propagation through a medium as described.

Question Info