Question

Two identical piano wires, when tuned to a fundamental frequency of \(400\ \text{Hz}\), produce no beats. One wire is then slightly tightened, and the beat frequency heard is \(2\ \text{Hz}\). What is the new fundamental frequency of the tightened wire?

• A. \(398\ \text{Hz}\)
• B. \(402\ \text{Hz}\)
• C. \(404\ \text{Hz}\)
• D. \(396\ \text{Hz}\)

Hint:

Tightening a string increases its frequency. So choose the frequency greater than the original frequency.

Answer 1

The Correct Option is B