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MHT CET 2024 (2 May, Shift 2) · Superposition, Coherence & Intensity

Superposition, Coherence & Intensity question from MHT CET 2024 (2 May, Shift 2)

Q43MHT CET 2024 · 2 MAY · SHIFT 2Medium

Superposition, Coherence & Intensity

The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is 9:19 : 1. The intensities of the light sources used are in the ratio

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Answer: (b)

  1. a1+a2a1−a2=9=3⇒a1=2a2\frac{a_1+a_2}{a_1-a_2} = \sqrt{9} = 3 \Rightarrow a_1 = 2a_2
  2. I1I2=(a1a2)2=4\frac{I_1}{I_2} = \left(\frac{a_1}{a_2}\right)^2 = 4
  3. So the answer is (b) 4:14 : 1.
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