Q1422
The Laser is a beam of radiations which are
A.
Non-coherent and monochromatic
B.
Coherent and monochromatic
AnswerC.
Non-coherent and non-monochromatic
D.
Coherent and non-monochromatic
Answer: Option B
Solution
Answer: Option B
Solution:
Laser, an acronym for Light Amplification by Stimulated Emission of Radiation, creates a radiation beam that is coherent (in-phase). In a coherent light source, the amplitude of the radiated waves is added and results in a radiation beam of great intensity. It normally produces only one or two wavelengths. The single wavelength is called monochromatic radiation.