Question

The energy of a photon corresponding to the visible light of maximum wavelength is approximately-

• A. 1 eV
• B. 1.6 eV
• C. 3.2 eV
• D. 7 eV

Answer 1

Answer: (B)

1.6 eV

Answer 2

E = $\frac { 12400 } { \lambda _ { ( \AA ) } }$ eV

E =$\frac { 12400 } { 8000 \AA }$= 1.6 eV