Question

Yellow light emitted from a sodium lamp has a wavelength ( λ) of 580 nm. Calculate the frequency ( ν ) and wave number ( ) of the yellow light.

Answer 1

v=c(speed of light)÷wavelength so put both the values and answer is 5.2×10(10 raise to the power 14 . And wave number is the reciprocal of wave length so answer is 1.7 ×10(10ki power 6)