A film of liquid with refractive index 1.3 is spread on glass whose refractive index is 1.65. Determine the thickness of the film for which orange light of wavelength 620 nm at normal incidence is not reflected.

A film of liquid with refractive index 1.3 is spread on glass whose refractive index is 1.65. Determine the thickness of the film for which orange light of wavelength 620 nm at normal incidence is not reflected.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Wave Optics

Section: Chapter Questions

Problem 26P

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Concept explainers

Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.

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A film of liquid with refractive index 1.3 is spread on glass whose refractive index is 1.65. Determine the thickness of the film for which orange light of
wavelength 620 nm at normal incidence is not reflected.

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