STANDARD Physics Laser MCQ Question
If there are N atoms in a source of Laser light and each atom is emitting light with intensity I, then the total intensity produced by it is
NI
N²I
N³I
N⁴I
Correct Answer
Detailed Explanation
The total intensity is the sum of the intensities of all atoms. Since each atom emits light with intensity I, the total intensity is N times I, which is N²I.
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