The Intensity of the Waves from a Point Source at a Distance

question 2

Multiple Choice

The intensity of the waves from a point source at a distance d from the source is I. At what distance from the sources is the intensity equal to 2I?

• A) d/2
• B) \(\text{d}/ \sqrt { 2 }\)
• C) d/4
• D) d/8

---

Definitions:

Market Rate

The prevailing price or interest rate available in the marketplace for goods, services, or securities.

Present Value Tables

Tables used to find the present value of a sum of money to be received in the future, given a specific discount rate.

Bond Interest Expense

The cost incurred by an issuer of bonds as a result of interest payments made to bondholders over the life of the bond.