physics
A spectral line is emitted when an atom undergoes tranisition between two levels with a difference in energy of 2.4eV.What is the wavelength of the line (a)287nm(b)507angstrome units()377angstrome units(d)518nm
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The wavelength of a spectral line is related to the difference in energy between the two levels by the equation E=hf=hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength. Substituting in the given energy of 2.4eV, we get:
2.4eV = (6.626 × 10−34 J·s)(3 × 108 m/s)/λ
λ = 518 nm
So, the answer is (d) 518nm.
