Inclined Glass Wedge Diffraction - Help

AI Thread Summary
The discussion focuses on calculating the wavelength of light from a monochromatic beam incident on an inclined glass wedge, where interference fringes are observed. The angle of inclination is γ = 0.05 °, and the distance between adjacent dark streaks is given as △X = 0.21 mm. The refractive index of glass is specified as n = 1.5, and the relevant equation for the problem is d sin α = n λ. Participants seek clarification on whether this scenario qualifies as a thin-film problem and request a visual representation of the setup. The conversation emphasizes the need for guidance in solving the problem effectively.
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Homework Statement


Monochromatic beam of incident light on the surface of the glass wedge,
whose upper edge is inclined at an angle of γ = 0.05 ° from the base. In reflected light
observe a number of interference fringes, the distance between adjacent
dark streaks is △X = 0.21 mm. Calculate the wavelength λ of the incident light.
Refractive index of glass n = 1.5.


Homework Equations


d \sin \alpha = n \lambda


The Attempt at a Solution


I need a guidance ! Is it a thin-film problem ?
 
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Need a picture of this setup.
 

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