Question a helium-neon laser emits red light having a, Ask an Expert

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Question: A helium-neon laser emits red light having a wavelength of 6.4 x 10^-7 m and a power of 0.5 mW. How many photons are emitted each second? The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.

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