Calculate (a) wave number and (b) frequency of yellow radiations having wavelength of 5800Å

Calculate (a) wave number and (b) frequency of yellow radiations havin

1.	Calculate (a) wave number and (b) frequency of yellow radiations having wavelength of 5800Å
Answer» SOLUTION :Calculate of wave number: Wave number `bar(v) = (1)/(LAMBDA)` But `LAMDA = 5800Å = 5800 xx 10^(-10)m " (Given)" :. bar(v) = (1)/(5800 xx 10^(-10)m) = 1.72 xx 10^(6) m^(-1)` (b) Calculate of Frequency: Frequency `v = (c)/(lamda)` Substituting `c = 3 xx 10^(8) m//sec and lamda = 5800 xx 10^(-10)m`, we get `v = (3 xx 10^(8) ms^(-1))/(5800 xx 10^(-10)m) = 5.172 xx 10^(14) s^(-1)` or cycles/sec or HZ