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Question: What is the electric field amplitude associated with the light from a laser pointer? Assume a power of 0.20mW with a wavelength of 600 nm, Compare the electric field amplitude for the laser pointer with the electric field from a point charge. Consider a point charge Q and suppose the magnitude of the electric field at a distance of 1.0 cm from Q is equal to the electric field from the laser pointer. Find Q? Express the answer in coulombs and as an equivalent number of electrons.

I do not just need an answer, work and explanations/walkthrough would be much appreciated! Thanks.

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