kipkoech patrick
Last Activity: 6 Years ago
1 first wavelength
n = 3 , E = _ 13.6 eV4 2 (1/9 – 1/4)
but lamda = hc/E
This gives the first longest wavelength .
for the second longest wavelenthg
take n = 4
therefore E = -13.6 eV 42 (1/16 – ¼)
Then lamda = hc/E
This gives the second wavelenthg