InterviewSolution
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InterviewSolution
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What is the need to achieve population inversion?(a) To excite most of the atoms(b) To bring most of the atoms to ground state(c) To achieve stable condition(d) To reduce the time of production of laser |
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Answer» Right answer is (a) To excite most of the atoms To elaborate: When population inversion is achieved, the majority of atoms are in the excited state. This causes amplification of the incident beam by stimulated emission. Thus the laser beam is produced. |
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