Obtain the condition for maxima and minima due to interference in a wedge shape film observed in reflected light. How is the interference pattern in wedge shaped film?

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written 9.2 years ago by

neeta.vanage • 880

modified 3.9 years ago by

pedsangini276 • 4.8k

Subject: Applied Physics 2

Topic: Interference And Diffraction Of Light

Difficulty: High

engineering physics

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written 7.8 years ago by

neeta.vanage • 880

Consider a film of non-uniform thickness as shown in Fig. It is bound by two surfaces OX and OX′ inclined at an angle θ. The thickness of the film gradually increases from O to X. Such a film of non-uniform thickness is known as wedge shaped film. The point O …

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written 9.2 years ago by

neeta.vanage • 880

modified 9.2 years ago by

poojajoshi • 100

The shape of the fringe depends on how the thickness of the air film enclosed varies.
In wedge shaped film the thickness of the air is constant over a straight line along the width of the wedge.
Hence the fringes in wedge shaped film is straight.
In a newton’s ring …

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