State what is the energy of a photon of light

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Reference no: EM13180288

(a) A red laser pointer emits light with a wavelength of 650 nm. What is the energy (in J) of a photon of light of this wavelength?

(b) Knowing that 1eV = 1.602 x 10^-19 J, calculate the energy of the photon in eV.

Reference no: EM13180288

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