but i thought the lambda is supposed to be in the unit of "meters". since the graph is "voltage-time" graph, wouldn't that makes the wavelength in the unit of "seconds"?
actually there is no need to calculate the value of frequency, since the function generator generates the wave frequency...
We're doing a lab to determine the ratio of specific heat of nitrogen gas (r) by using the equation v=ROOT(rRT/M), where v is the speed of sound in pure nitrogen gas, R being 8.314J/molK, T being 298K (room temp), M of nitrogen being 0.028kg/mol.
In the experiment, the function generator was...