A certain red light has a wavelength of 680 nm. What is the frequency of the light?
1 Answer
Explanation:
We're asked to convert a given wavelength of a wave to its frequency.
We can use the equation
where
-
#lambda# (the lowercase Greek letter lambda) is the wavelength of the wave, in meters -
#f# is the frequency of the wave, in inverse seconds (#"s"# ) or hertz (#"Hz"# ) -
#c# is the speed of light in vacuum, precisely#299,792,458# #"m/s"#
Since our wavelength must be in units of
Plugging in known values to the equation and solving for
rounded to