The energy of a photon with a wavelength of $\lambda = 4000 \ \mathring{A}$ is equal to ........ Joules.
- A$3.46 \times 10^{-18} \ J$
- B$4.33 \times 10^{-19} \ J$
- C$4.96 \times 10^{-19} \ J$
- D$5.16 \times 10^{-19} \ J$
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