Question
The longest wavelength of electromagnetic radiation that is absorbed in gallium arsenide is $890 \mathrm{~nm}$. What is the band gap of this semiconductor?
Step 1
We can do this by multiplying the given wavelength by $10^{-9}$. So, $\lambda = 890 \times 10^{-9} \mathrm{~m}$. Show more…
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