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Question: A helium-neon laser emits light that has a wavelength of 632.8 nm. The circular aperture through which the beam emerges has a diameter of 0.600 cm.

Question 1: Estimate the diameter of the beam 14.0 km from the laser.

Please give me an explanation for this question.

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  • Category:- Physics
  • Reference No.:- M91248419

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