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Ram Sharma • 193.84K Points
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Q. The Laser is a beam of radiations which are

  • (A) Non-coherent & monochromatic
  • (B) Coherent & monochromatic
  • (C) Coherent & non-monochromatic
  • (D) Non-coherent & non-monochromatic
Correct Answer - Option(B)

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