MCQ
A laser is a coherent source because it contains
  • A
    Many wavelengths
  • B
    Uncoordinated wave of a particular wavelength
  • C
    Coordinated wave of many wavelengths
  • Coordinated waves of a particular wavelength

Answer

Correct option: D.
Coordinated waves of a particular wavelength
d
(d) LASER is the short form of Light Amplification by Stimulated Emission of Radiation.

Laser beam is intense, monochromatic (that is of the single wavelength) collimated and highly coherent.

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