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When is the wave interference strong?(a) When the paths taken by all of the interfering waves are greater than the coherence length(b) When the paths taken by all of the interfering waves are lesser than the coherence length(c) When the paths taken by all of the interfering waves are equal than the coherence length(d) When the paths taken by all of the interfering waves are independent of the coherence lengthThis question was addressed to me in an internship interview.My doubt stems from Coherent and Incoherent Addition of Waves in chapter Wave Optics of Physics – Class 12 |
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Answer» The correct answer is (b) When the paths taken by all of the interfering waves are lesser than the COHERENCE LENGTH |
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