The Wave Function for Sound Waves Is
A)either the Displacement $\rho$

question 53

Multiple Choice

The wave function for sound waves is

• A)either the displacement of air molecules s,or the density \(\rho\).
• B)the wave function \(\varPsi\) .
• C)the electric field .
• D)the string displacement y.
• E)None of these is correct.

---

Definitions:

Present Value

The modern-day worth of a forthcoming sum of money or flow of cash payments, using a set rate of return for calculation.

Received

The action of being given or awarded something.

Marginal Product

the increase in output resulting from the use of one more unit of a variable input, holding all other inputs constant.

Marginal Revenue Product

The additional revenue generated by employing one more unit of a particular input, keeping all other inputs constant.