Question
Laser beams are used to measure long distances because
Answer: Option D
:
D
Laser beams are perfectly parallel, so that they are very narrow and can travel a long distance without spreading. This is the feature of laser while monochromatic and coherent are characteristics only.
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:
D
Laser beams are perfectly parallel, so that they are very narrow and can travel a long distance without spreading. This is the feature of laser while monochromatic and coherent are characteristics only.
Was this answer helpful ?
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