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CBSE Class 12-science Answered

Respected sir/madam I had asked you a question on young's double split experiment in which you have given me the answer.I want to ask you that can we do the question by this method
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Asked by Balbir | 25 Feb, 2018, 04:54: PM
answered-by-expert Expert Answer
We need to answer this question using the physics involved in it, not by going by mathematics alone.
The physics condition for the doulbel slit experiment is, the two slits acting like a secondary source of spherical wavelets and spherical wavelets strat from two slits with same phase. This is possible only if plane wave fronts incident on the two slits. we get plane wave front away from the light source. In plane wave front all the points are having same phase. If we have light source very near to slit, we get spherical wavelets and if we get two spherical wavelets entering the slit, we will not have same phase at both the slits. Mathematical formula does not indicates this physics.
Answered by Thiyagarajan K | 26 Feb, 2018, 07:40: AM

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