Interview question based on skill :
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Total Questions: 5
1. Which of the following is a unique property of laser?
Correct Answer is : Coherence
2. Which of the following is an example of optical pumping?
Correct Answer is : Ruby laser
3. When laser light is focussed on a particular area for a long time, then that particular area alone will be heated.
Correct Answer is : TRUE
4. Which of the following can be used for generation of laser pulse?
Correct Answer is : Nd- YAG laser
5. What is the need to achieve population inversion?
Correct Answer is : To excite most of the atoms
