An electron falls from an energy level of -5.44eV to another energy level, E. If the emitted photon is of wavelength 5.68 x 10\(^{-6}\)m, calculate the energy change. [ Plank's constant = 6.63 x 10\(^{-34}\)Js, emitted radiation speed = 3.0 x 10\(^8\)ms\(^{-1}\)]
a
1.49 x 10\(^{-20}\)J
b
1.49 x 10\(^{-19}\)J
c
3.49 x 10\(^{-20}\)J
d
3.49 x 10\(^{-19}\)J
Explanation
Correct Option
cVideo Explanation
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