Yellow light emitted from a sodium lamp has a wavelength (λ) of 580 nm. Calculate the frequency (ν) and wavenumber ( ) of the yellow light.
Given,
wavelength (λ) = 580 nm = 580 x 10^(-9) m
We can use the following equations to calculate the frequency (ν) and wavenumber (ν̃) of the yellow light:
Speed of light, c = λν
Wavenumber, ν̃ = 1/λ
Substituting the given value of λ in the above equations, we get:
ν = c/λ = (3 x 10^8 m/s) / (580 x 10^(-9) m) = 5.17 x 10^14 Hz
ν̃ = 1/λ = 1 / (580 x 10^(-9) m) = 1.72 x 10^3 m^(-1)
Therefore, the frequency of the yellow light is 5.17 x 10^14 Hz and the wavenumber of the yellow light is 1.72 x 10^3 m^(-1).
Comments
Post a Comment