Question

A source of sound emits sound waves in uniform medium. If energy density is E and maximum speed of particles of the medium is $V_{max}$ then the graph between E and $V_{max}$ is best representedby

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

$V_{max}=A\omega =2\pi fA\text{Energy density}E=\frac{1}{2}\rho v_{max}^2$

So the curve between E and $v_{max}$ is a parabola of increasing slope and symmetric about y-axis