Civil Services Uttar Pradesh (उत्तर प्रदेश) PCS Mock Test Series 2025 General Science Physics Wave

The term LASER stands for

1
Light Amplification by Stimulated Emission of Radiation
2
Light Amplification by Spontaneous Emission of Radiation
3
Light Amplification  by Stimulated Emission of Ray
4
Light Amplification  by Stimulated Energy of Radiation
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