6. Suppose two flat glass plates 30-cm long are in contact along one end and separated by a human hair at the other end. If the diameter of the hair is 50µm, find the separation of the interference fringes when the plates are illuminated by green light, A = 546 nm.

6. Suppose two flat glass plates 30-cm long are in contact along one end and separated by a human hair at the other end. If the diameter of the hair is 50µm, find the separation of the interference fringes when the plates are illuminated by green light, A = 546 nm.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter27: Wave Optics

Section: Chapter Questions

Problem 21PE: A diffraction grating has 2000 lines per centimeter. At what angle will the first-order maximum be...

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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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6. Suppose two flat glass plates 30-cm long are in contact along one end and separated by a
human hair at the other end. If the diameter of the hair is 50µm, find the separation of
the interference fringes when the plates are illuminated by green light, λ = 546 nm.

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