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what will be the effect on the fringes, if young's double slit experiment set up is immersed in water?

what will be the effect on the fringes, if young's double slit experiment set up is immersed in water?

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2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

Wavelength of light in water is less than that in air. The fringe width is directly proportional to the wavelength. Therefore, the fringes will become narrower.

Regards
Vikas TU
14149 Points
one year ago
If the young's double slit experiment set-up is immersed in water, then the fringes become narrower. You have learnt in the text how Huygens' principle leads to the laws of reflection and refraction.  The reflected wavefront AB'C, appears to start from I. Hence, I becomes virtual image for O as real point object.

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