Why do Newton Rings Form in Circular Patterns?

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Newton rings form in circular patterns due to the geometry of light interference between a convex lens and a flat surface. The spherical symmetry of the curved glass causes light rays to travel different distances before they interfere, resulting in concentric circles. This phenomenon is typically observed when a convex lens is placed over a flat plate, leading to the characteristic circular ring pattern. The arrangement of the rings is a direct consequence of the varying thickness of the air film between the lens and the plate. Understanding this geometry is key to explaining why Newton rings appear as they do.
FizixFreak
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why are Newton rings observed in a circuler pattern?
 
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lol, I thought you are trying to advertise ringtones for mobiles.

I think it is a simple geometry - think about distances covered by different rays before they interfere.
 
FizixFreak said:
why are Newton rings observed in a circuler pattern?
Consider how those patterns are typically produced--by putting a convex piece of glass over a flat plate. The curved surface has a spherical symmetry that leads to circular rings.

http://www.citycollegiate.com/Newtons_rings.htm"
 
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