Calculate the wavelength (λ in nm) of the photon emitted when an electron transitions
between n = 3 and n = 1 energy levels. I keep getting .00975 but the answer is apparently 102.6nm could someone please explain this to me?

Question

Calculate the wavelength (λ in nm) of the photon emitted when an electron transitions 
between n = 3 and n = 1 energy levels. I keep getting .00975 but the answer is apparently 102.6nm could someone please explain this to me?

somy · Answer

dsinQ=nLambda

somy · Answer

lambda= ( d * sinQ )/ n

somy · Answer

ah wait its not what you need, sorry

somy · Answer

can u show your working?

jfraser · Answer

0.00975 is the INVERSE of the wavelength. If you divide 1/0.00975 you'll get 102nm

anonymous · Answer

Thanks Fraser that's exactly what i needed