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Consider the following statements used in respect of the phenomenon- Population...

This question belongs to Electronics And Communications Engineering Electronic Devices And Circuits
Electronic Devices and Circuits
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Consider the following statements used in respect of the phenomenon- Population Inversion:
1. It means population in a higher state is higher than that in a lower state
2. It is observed under thermal equilibrium
3. It increases the rate of spontaneous emission
4. It increases the rate of stimulated emission
Which of the statements given above are correct?

Answer & Solution
Correct Answer: Option D
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