How many photons are emitted per second

Reference no: EM13976918

A 9.00mW helium neon laser emits a visible laser beam with a wavelength of 638nm. How many photons are emitted per second?

Reference no: EM13976918

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How many photons are emitted per second : A 9.00mW helium neon laser emits a visible laser beam with a wavelength of 638nm. How many photons are emitted per second?

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