Beats: a Person Is Hearing Two Sound Waves Simultaneously

question 63

Multiple Choice

Beats: A person is hearing two sound waves simultaneously. One has a period of 1.50 ms and the other one a period of 1.54 ms. What is the period of the beat due to these two waves?

• A) 0.040 ms
• B) 1.5 ms
• C) 3.0 ms
• D) 58 ms
• E) 330 ms