A monochromatic beam is incident obliquely on a YDSE. A glass sheet of thickness t and refractive index μ is before lower slit S₂, as shown. Answer the following questions.
Physics · Wave Optics
A monochromatic beam is incident obliquely on a YDSE. A glass sheet of thickness t and refractive index μ is before lower slit S₂, as shown. Answer the following questions.

Sub-question 1
The central bright fringe can be obtained
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Sub-question 2
If central bright fringe is obtained on screen at O:-
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Sub-question 3
The phase difference between the waves interfering at fifth minima is
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