Achieve # 12 Weeks 2-4

[506002081]

Hello,

How do you go about part a? I submitted the values that are in the question, 1064nm that I converted into 1.064 x 10^-6 m, and I put this on the denominator of E= hc/wavelength. I then converted my answer to eV but it still says its wrong.

How do you solve this?

[Melissa Hua 3G]

You have to subtract this value by the experimentally measured energy. So basically, 1.165 EV - 0.137 EV. The key term is electron affinity which is the difference between the incident radiation and the experimentally measured energy.

[SophieCacdac_3H]

Hi!
After you convert to Ev you need to find electron affinity which is incident photons - E which should be 1.165-0.137.