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Akash Lawaniya • 9.48K Points
Tutor III Physics
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Q. Which of the following statements is not true regarding LASER?

(A) A LASER is a device that emits light through a process of optical amplification
(B) LASER beams can be focused to very tiny spots, achieving a very high irradiance.
(C) The emitted LASER light is notable for its high degree of dispersive power unattainable using other technologies.
(D) LASER light is used in bar-code scanners
Correct Answer - Option(C)
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