Question

the wave number of the radiation whose quantum is 1 erg is

Answer 1

if it is principal quantum no the wave no is 1erg

Answer 2

Answer:The wave number of the radiation whose quantum is 1 erg is $0.0503\times 10^{-19} m^{-1}$.

Explanation:

Energy of 1 quantum = 1 erg = $1\times 10^{-7} Joules$

Energy of the photon or quantum is given by

$E=\frac{hc}{\lambda }$

Wave number = $\bar \nu=\frac{1}{\lambda }$

$\bar \nu =\frac{E}{hc}=\frac{1\times 10^{-7} Joules}{6.626\times 1)^{-34} J.s\times 3\times 10^8 m/s}=0.0503\times 10^{-19} m^{-1}$

The wave number of the radiation whose quantum is 1 erg is $0.0503\times 10^{-19} m^{-1}$.