The energy of a photon of wavelength $(\lambda) = 1 \, m$ is (Planck's constant $= 6.626 \times 10^{-34} \, J \, s$,speed of light $= 3 \times 10^8 \, ms^{-1}$)
- A$1.988 \times 10^{-25} \, J$
- B$1.988 \times 10^{-28} \, J$
- C$1.988 \times 10^{-30} \, J$
- D$1.988 \times 10^{-23} \, J$
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