Beats – Practice


1) Two guitars play a note each with frequencies of 245Hz and 251Hz respectively. What is the beat frequency heard by a listener?

2) A student is trying to determine the frequency of a tuning fork without a label. They test it with another tuning fork with a frequency of 256 Hz. They notice a beat frequency of 6 Hz. What are the possible frequencies of the unknown tuning fork?

Quick Answers:

1) 6 Hz

2) 250 Hz or 262 Hz

Worked Answers:

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