Calculate (a) Wavenumber and (b) frequency of yellow radiation having wavelength `5800 A^(@)`.

Answer

`(i) 1.724 xx 10^(6) m^(-1) , (ii) 5.172 xx 10^(14) s^(-1)`

Explanation

(i) Wave number , `barv = 1/(5800 xx 10^(-10)m)`
`= 1.724 xx 10^(6) m^(-1)`
(ii) Frequency = `v = c/(lambda) = ((3.0 xx 10^8 ms^(-1))/(5800 xx 10^(-10)m))`
`= 5.172 xx 10^(14) s^(-1)`.