Question

A stroboscope was used to determine the frequency of the string oscillator. Strobe frequencies f_s were recorded where a single stationary image of the oscillating string was observed. The frequency of the oscillator f can be determined from the stroboscope frequencies f_s by f = nf_s where n is an integer corresponding to the number of oscillations per flash. The strobe frequencies produced were determined and tabled below:

Strobe Frequency fs Hz	Oscillations per flash n
23.2	m
15.3	m+1
12	m+2
9.1	m+3

Note that m is an integer, that you need to determine.

Determine the oscillator frequency, expressing answer to one decimal place, in SI units
.

Answer 1