Please solve 2

If the energy of a photon is 3.103 eV, then calculate the wave length.

Dear Student,
given,E=3.103eV=3.103×1.6×10-19 Jlet λ be the wavelength.h=6.63×10-34 Jsc=3×108 m/swe know,E=hcλλ=hcEλ=6.63×10-34×3×1083.103×1.6×10-19λ=19.89×10-264.968×10-19λ=4.0062×10-7mλ=4.0062×10-7×1010 A°λ=4.0062×103 A°λ=4006.2 A° approx.
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