Problem 2: Light of wavelength 685 nm shines through two narrow slits. When the interference pattern appears on a wall that is 2.50 meters away, the first bright fringe is 0.75 centimeters from the central bright spot. a) Calculate the distance between the two slits. b) If another light source has its first bright fringe only 0.69 centimeters from the central bright spot under the same experimental conditions, calculate the wavelength of this new light source.

Problem 2: Light of wavelength 685 nm shines through two narrow slits. When the interference pattern appears on a wall that is 2.50 meters away, the first bright fringe is 0.75 centimeters from the central bright spot. a) Calculate the distance between the two slits. b) If another light source has its first bright fringe only 0.69 centimeters from the central bright spot under the same experimental conditions, calculate the wavelength of this new light source.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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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Problem 2: Light of wavelength 685 nm shines through two narrow slits. When the interference pattern
appears on a wall that is 2.50 meters away, the first bright fringe is 0.75 centimeters from the central
bright spot.
a) Calculate the distance between the two slits.
b) If another light source has its first bright fringe only 0.69 centimeters from the central bright spot
under the same experimental conditions, calculate the wavelength of this new light source.

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