In this lesson, we will learn how to compare superimposed waves of similar frequencies to calculate the beat frequency resulting from their superposition.
Sample Question Videos
The middle C hammer of a piano hits two strings, producing beats of frequency 1.50 Hz. One of the strings is tuned to 260.00 Hz. What frequencies could the other string have?
A piano hammer hits three strings that emit frequencies of 127.8, 128.1, and 128.3 Hz.
What beat frequency is produced by the 128.3 Hz and 128.1 Hz notes?
What beat frequency is produced by the 127.8 Hz and 128.3 Hz notes?
What beat frequency is produced by the 128.1 Hz and 127.8 Hz notes?
Two identical strings, of identical lengths of 2.00 m and linear mass density , are fixed on both ends. String is under a tension of 120.00 N. String is under a tension of 130.00 N. They are each plucked and produce sound at the mode. What is the beat frequency?