In laser production the state in which more atoms are in the upper state than in the lower one is called_____________?
AInverted population
BNormal state
CAll the above
D
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Correct answer
A. Inverted population
Explanation
Inverted population is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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D. Electric and magnetic fields moving perpendicular to each other
Explanation
Electric and magnetic fields moving perpendicular to each other is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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B. zero
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zero is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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D. Elements
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Elements is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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B. Time Period
Explanation
Frequency and period are the inverse of each other!
Correct answer
C. Neutrino
Explanation
Neutrino is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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B. More than the true weight
Explanation
More than the true weight is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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B. Physics
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Physics is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
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C. luminous
Explanation
luminous is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.