Determine the frequency of light with a wavelength of 1.507 × 10−7 cm. Answer in units of Hz.
+118723 Determine the frequency of light with a wavelength of 1.507 × 10−7 cm. Answer in units of Hz.
This is what I think.
speed of light = c = 3*10^10 cm/sec
your wave is 1.507*10^-7 cm / wavelength
Frequency is wavelengths /sec (called Hertz)
so
\(\frac{3*10^{10}\;cm}{sec}\times \frac{wavelengths}{1.507*10^{-7}\;cm}\\ =\frac{3*10^{10}}{sec}\times \frac{wavelengths}{1.507*10^{-7}}\\ =\frac{3*10^{10}}{1.507*10^{-7}}\times \frac{wavelengths}{sec}\\ =\frac{3*10^{17}}{1.507}\times \frac{wavelengths}{sec}\\ =1.99*10^{17} \;wavelengths/sec\\ =1.99*10^{17} \;Hertz\)
