The energy of the violet light emitted by a hydrogen atom with a wavelength of 410. 1 nm will be 4.85 * [tex]10^{-19}[/tex] J
Light energy is a form of electromagnetic radiation that comprises wavelengths that the common human eye can detect. Light is a type of kinetic energy. It consists of particles like photons, which have wave-like properties. It can affect the physiology of an organism, like photosynthesis or the sense of sight.
Energy = h*c / lambda
where
h = plank's constant = 6.626 * [tex]10^{-34}[/tex] J-s
c = speed of light = 3 * [tex]10^{8}[/tex] m/s
lambda = wavelength = 410. 1 nm = 410. 1 * [tex]10^{-9}[/tex] m
Energy = 6.626 * [tex]10^{-34}[/tex] * 3 * [tex]10^{8}[/tex] / 410. 1 * [tex]10^{-9}[/tex]
= 4.85 * [tex]10^{-19}[/tex] J
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