Question

10. Choose the correct statement relating to a laser beam:
(A) It is highly monochromatic.
(B) It has high angular divergence,
(C) It is produced by spontaneous emission.
(D) All are correct.​

Answer 1

Answer:

it is highly monochromatic

option number A

Answer 2

Laser is highly monochromatic.

• A laser is highly monochromatic because it produces a beam of very intense light. It is monochromatic, directional and coherent monochromatic in nature while a white light is not.

• Laser is produced by stimulated emission and not by spontaneous one.
• Lasers do not have high angular diversion as they are perfectly parallel and would not spread out in different directions.