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Question

Question: What is the wavelength of a photon of energy 1 eV?...

What is the wavelength of a photon of energy 1 eV?

A

12.4 × 103 Å

B

2.4 × 103 Å

C

0.4 × 102 Å

D

None of these

Answer

12.4 × 103 Å

Explanation

Solution

E = hcλ\frac { \mathrm { hc } } { \lambda }