Interference fringe pattern on a thin cut cylinder slice

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SUMMARY

The discussion focuses on the interference fringe pattern observed when a thin slice of glass cylinder is placed on a flat glass plate. The slice behaves as a thin film with a half cylindrical shape, causing light to refract at both the horizontal and curved surfaces. The light reflects off a plane mirror, but the expected interference pattern is not visible. Participants suggest researching "Newton's rings" to better understand the phenomenon.

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Anurag98
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A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate as shown in the figure. The observed interference fringes from this combination shall be ______.

My thoughts
The thin slice will act as thin film but of half cylindrical shape and the light pass in the thin slice will first get refraced from the horizontal surface then from the round surface. But after the refraction from round surface, it will be reflected from the plane mirror at the end and it will then follow the same path but in opposite direction.

But, still, I am not able to see any pattern formed.
 

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I suggest that you do some web research on "Newton's rings".
 

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