Question

A musical note has a frequency of 5 Hz. If its magnitude is 2 units, choose the correct sine function

that represents this note.
The musical note can be represented by the sine function
y = a sin bt.
(Consider the positive value of b)

Answer 1

Sorry I can't give you a straight answer, but here is the formula:

The formula for frequency is: f (frequency) = 1 / T (period). f = c / λ = wave speed c (m/s) / wavelength λ (m). The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz).

Hope it helps! I'm not very good at physics, sorry. :)