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Physics, 12.07.2019 21:20 toniottone01ow4vwd

Ahelium-eon laser eits light that has a wave leng th of 6 3 2,8 nm. the circular aperture o 5 em estinate the diametr of the beam io km crom the laser cm.

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Ahelium-eon laser eits light that has a wave leng th of 6 3 2,8 nm. the circular aperture o 5 em est...
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