Question

Yellow light emitted from a sodium lamp has a wavelength (λ) of 580 nm. Calculate the frequency (∨) and wavenumber (γ) of the yellow light.

Answer 1

as we know that,
frequency =1/wavelength
=>1/580
=>5.8*10^-02.

Answer 2

As we realize that, recurrence =1/wavelength

=>1/580 =>5.8*10^-02.

In this way, recurrence of yellow light radiated from the sodium light

= 5.17 × 1014 s– 1 c

= speed of light in vacuum

= 3 × 108 m/s Wave number

= it is characterized as the quantity of wavelengths which can be obliged in 1cm length along the bearing of proliferation.