Q.

Which of the following are the properties of a laser?

A. highly collimated
B. monochromatic
C. coherent light beam
D. all of the mentioned
Answer» D. all of the mentioned
Explanation: highly collimated, high monochromaticity and the coherence of the light beam are the properties of a laser.
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Madhavi Mani
7 months ago

What is meant by a "highly collimated" laser beam?
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