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SOLVED: If Huygens's Principle holds everywhere, why does a laser beam not spread out? a) All the light waves that spread in the perpendicular direction from the beam interfere destructively. b) It
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Why don't lasers spread like white light? - Quora
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SOLVED:If Huygens's Principle holds everywhere, why does a laser beam not spread out? a) All the light waves that spread in the perpendicular direction from the beam interfere destructively. b) It does spread out, but the spread is so small that we don't ...
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