4) A laser beam with a wavelength of 510 nm passes through a narrow slit and illuminates a screen 6.0 m behind the slit. A diffraction pattern is observed in which the central maximum has a width of 2.0 cm. Approximately how wide is the slit? A. 100 μm Β. 200 μm C. 300 μm D. 400 μm E. 500 μm

4) A laser beam with a wavelength of 510 nm passes through a narrow slit and illuminates a screen 6.0 m behind the slit. A diffraction pattern is observed in which the central maximum has a width of 2.0 cm. Approximately how wide is the slit? A. 100 μm Β. 200 μm C. 300 μm D. 400 μm E. 500 μm

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 8P

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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

4) A laser beam with a wavelength of 510 nm passes through a narrow slit and illuminates a
screen 6.0 m behind the slit. A diffraction pattern is observed in which the central maximum
has a width of 2.0 cm. Approximately how wide is the slit?
A. 100 μm
B. 200 μm
c. 300 μm
D. 400 μm
E. 500 μm

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