In a Young's double-slit experiment, 570-nm-wavelength light is sent through the slits. The intensity at an angle of 2.90° from the central bright fringe is 79% of the maximum intensity on the screen. What is the spacing between the slits?

In a Young's double-slit experiment, 570-nm-wavelength light is sent through the slits. The intensity at an angle of 2.90° from the central bright fringe is 79% of the maximum intensity on the screen. What is the spacing between the slits?

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 4P

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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.

Question

In a Young's double-slit experiment, 570-nm-wavelength light is sent through the slits. The intensity at an angle of 2.90° from the central bright fringe is 79% of the maximum intensity on
the screen. What is the spacing between the slits?
m

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In a Youngs double-slit experiment, a set of parallel slits with a separation of 0.100 mm is illuminated by light having a wave- length of 589 nm, and the interference pattern is observed on a screen 4.00 m from the slits, (a) What is the difference in path lengths from each of the slits to the location of a third-order bright fringe on the screen? (b) What is the difference in path lengths from the two slits to the location of the third dark fringe on the screen, away from the center of the pattern?
In a Youngs double-slit experiment, two parallel slits with a slit separation of 0.100 mm are illuminated by light of wavelength 589 nm, and the interference pattern is observed on a screen located 4.00 m from the slits. (a) What is the difference in path lengths from each of the slits to the location of the center of a third-order bright fringe on the screen? (b) What is the difference in path lengths from the two slits to the location of the center of the third dark fringe away from the center of the pattern?
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