Suppose you have two coherent point sources both having monochromatic light with wavelength of 514.5 [nm]. Which path difference between them would you need to achieve a phase shift of 45°? A 42.88 [nm] B. 64.31 [nm] C. 85.75 [nm] OD. 128.6 [nm]

Suppose you have two coherent point sources both having monochromatic light with wavelength of 514.5 [nm]. Which path difference between them would you need to achieve a phase shift of 45°? A 42.88 [nm] B. 64.31 [nm] C. 85.75 [nm] OD. 128.6 [nm]

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 46P: An electric current through hydrogen gas produces several distinct wavelengths of visible light....

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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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Suppose you have two coherent point sources both having monochromatic light with wavelength of 514.5 [nm]. Which path difference between them would you need to achieve a phase shift of 45°?
O A 42.88 [nm]
OB. 64.31 [nm]
O C. 85.75 [nm]
OD. 128.6 [nm]

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