Quantum Mechanics of Atoms (id: 18667b982)

本题目来源于试卷: Quantum Mechanics of Atoms，类别为 IB物理学

[填空题]
Does the intensity of light from a la e8y hp:du3nc*ser fall off as the inverse anpfni1m;o)o l-8jc8 square of the distance? E;no-j)c8 im l8opan 1fxplain. ----待选择----yesno 

参考答案: no


本题详细解析:
No, the intensity of light frop*nw 64: iz o o7g-+;hsrlxodsm a laser beam does not drop off as the inverse square of the distance. Laser light is much closer to being a plane wave rather than a spherically symmetric wave, and so its intensity is n46s;xnoh g r-:7+zo p*woilsd early constant along the entire beam.

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