What is the energy of a photon of wavelength 500 nm? (Take eV nm.)
Answer and explanation
Correct answer: B. 2.48 eV
- Step 1: Use . Step 2. eV. Answer: 2.48 eV. Why not the others: 1.24 eV uses 1000 nm; 4.96 eV uses 250 nm; 0.25 eV is a power-of-ten slip.
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