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: (B) Coherent & monochromatic

Published by Ram Sharma ⭐ 193.88K Points at 23-Feb-2022 11:21 am in Physics

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