Two Sources, S₁ and S₂, Each Emit Waves of Wavelength $\lambda$

question 47

Multiple Choice

Two sources, S₁ and S₂, each emit waves of wavelength $\lambda$ in the same medium.The phase difference between the two waves, at the point P shown, is .The quantity $\pi$ is:

• A)"the distance S₁S₂"
• B)"the angle S₁PS₂"
• C)"\(\pi\)/2"
• D)"the phase difference between the two sources"
• E)"zero for transverse waves, \(\lambda\) for longitudinal waves"

---

Definitions:

Net Present Value

The discrepancy between the current worth of cash coming in and the worth of cash going out over a certain timeframe, utilized in capital budgeting to evaluate an investment's profitability.

Residual Value

This refers to the estimated value of an asset at the end of its useful life.

Cash Inflows

The total amount of money received by a company during a specific period, including revenues, investments, and financing.

Net Present Value

A method used in capital budgeting to assess the profitability of an investment by calculating the present value of all cash inflows and outflows.