Assertion: In calculating the disturbance produced by a pair of superimposed incoherent…
Physics · JEE Advanced · NTA Exams — Optics
Assertion: In calculating the disturbance produced by a pair of superimposed incoherent wave trains, you can add their intensities.
Reason: \(I_{R}=I_{1}+I_{2}+2 \sqrt{I_{1} I_{2}} \cos \Delta \theta\) The average value of \(\cos \Delta \theta=0\) for incoherent waves.
Reason: \(I_{R}=I_{1}+I_{2}+2 \sqrt{I_{1} I_{2}} \cos \Delta \theta\) The average value of \(\cos \Delta \theta=0\) for incoherent waves.
- If both assertion and reason are true and the reason is the correct explanation of the assertion.
- If both assertion and reason are true but reason is not the correct explanation of the assertion.
- If assertion is true but reason is false.
- If the assertion and reason both are false.
Answer
(A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
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