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The wave length of Red light in the visible region is about 760 nm the energy of photon in that case will be: |
2.43 eV 3.18 eV 1.64 eV 2.68 eV |
1.64 eV |
The correct answer is Option (3) → 1.64 eV To calculate the energy of the photon (E), $E=\frac{hc}{λ}$ where, λ = Wavelength = 760 nm = $760×10^{-9}m$ $E=\frac{(6.63×10^{-34})(3×10^8)}{760×10^{-9}}$ $≃1.64eV$ |
