question_answer

The fundamental frequency of a source of sound is \[\mathbf{200}\text{ }\mathbf{Hz}\] and the Source produces all the harmonics. State, with reasons, with which of the following frequencies this source will resonate: 150, 200, 300 and 600 Hz?

Answer:

                The source will produce harmonics of frequencies 200 Hz, 400 Hz, 600 Hz, 800 Hz, etc. Clearly, the source will resonate with frequencies of \[\text{2}00\text{ Hz}\] and\[~\text{6}00\text{ Hz}\].