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

question 26

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)d/ \(\sqrt { 2 }\)
• C)d/4
• D)d/8

---

Definitions:

Finance Charge

A fee representing the cost of credit or the cost of borrowing, typically detailed in the terms of a loan or credit agreement.

Accounts Receivable

Money owed to a business by its customers for products or services delivered or used but not yet paid for.

Allowance for Doubtful Accounts

A contra-asset account used to estimate the portion of accounts receivable that is expected to be uncollectible.

Merchandise Return

The process of returning purchased goods to the seller, typically due to defects, dissatisfaction, or other reasons.