Quiz on LASER

What is the full form of LASER

• Light amplification by source of electromagnetic Radiation

• Light amplified by stimulated electronic Radiation

• Light Amplification by Stimulated Emission of Radiation

• None of the Above

Which on of the below is the characteristics of LASER

• Monochromacity

• Directionality

• High Intensity

• Coherent

• All the above

Principle of LASER is

• Spontaneous Absorption

• Stimulated Emission

• Induced Emission

• Both b and c

In which of the following year the first LASER was discovered

• 1950

• 1940

• 1970

• 1960

In the absorption process the photon is

• Absorbed

• Produced

• Induce

• None