Question

Hydrogen atom in ground state (13.6eV) is excited by monochromatic radiations of 12.1eV. Calculate the number of spectral lines observed.

Answer 1

Helppppppp @ghazi @Mikael

Answer 2

......... @lgbasallote @ghazi @Mikael

Answer 3

@experimentX @sami-21 @ghazi @RaphaelFilgueiras

Answer 4

use \[\Delta E= \frac{ h*c }{ \lambda }\] find lambda first

Answer 5

then use \[\lambda = \frac{ m^2}{ m^2-n^2 }\] now you can calculate number of lines...for hydrogen take n=2 you'll have values of m ..and i guess there are total 5 spectral lines..

Answer 6

but do remember...your m should be not that high so as to lose your wavelength ...your wavelength must be recovered....