Assertion: In Young’s experiment, for two coherent source, the resultant intensity is…
Physics · JEE Advanced · NTA Exams — Optics
Assertion: In Young’s experiment, for two coherent source, the resultant intensity is given by
\(I=4 I_{0} \cos ^{2} \frac{\phi}{2}\).
Reason: Ratio of maximum to minimum intensity is \[\frac{I_{\max }}{I_{\min }}=\frac{\left(\sqrt{L_{1}}+\sqrt{L_{2}}\right)^{2}}{\left(\sqrt{L_{1}}-\sqrt{I_{2}}\right)^{2}}\]
\(I=4 I_{0} \cos ^{2} \frac{\phi}{2}\).
Reason: Ratio of maximum to minimum intensity is \[\frac{I_{\max }}{I_{\min }}=\frac{\left(\sqrt{L_{1}}+\sqrt{L_{2}}\right)^{2}}{\left(\sqrt{L_{1}}-\sqrt{I_{2}}\right)^{2}}\]
- 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
(B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
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