A monochromatic light passes through two slits and produces an interference pattern on a screen behind the slits. If the 1st bright region on the screen (above the brightest band) occurs at an angle of 5.74°, how long should the distance between the slits be? a. the slit distance should be 10% of the wavelength b. the slit distance should be 10x of the wavelength c. the slit distance should be 0.100014m d. Cannot be determined

A monochromatic light passes through two slits and produces an interference pattern on a screen behind the slits. If the 1st bright region on the screen (above the brightest band) occurs at an angle of 5.74°, how long should the distance between the slits be? a. the slit distance should be 10% of the wavelength b. the slit distance should be 10x of the wavelength c. the slit distance should be 0.100014m d. Cannot be determined

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 92AP: A single slit of width 2100 nm is illuminated normally by a wave of wavelength 632.8 nm. Find the...

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The width of the central peak in a single-slit diffraction pattern is 5.0 mm. The wavelength of the light is 600 nm, and the screen is 2.0 m from the slit. (a) What is the width of the slit? (b) Determine the ratio of the intensity at 4.5 mm from the center of the pattern to the intensity at the center.
Two slits of width 2 m, each in an opaque material, are separated by a center-to-center distance of 6 m. A monochromatic light of wavelength 450 nm is incident on the double-slit. One finds a combined interference and diffraction pattern on the screen. (a) How many peaks of the interference will be observed in the central maximum of the diffraction pattern? (b) How many peaks of the interference will be observed if the slit width is doubled while keeping the distance between the slits same? (c) How many peaks of interference will be observed if the slits are separated by twice the distance, that is, 12 m, while keeping the widths of the slits same? (d) What will happen in (a) if instead of 450-nm light another light of wavelength 680 nm is used? (e) What is the value of the ratio of the intensity of the central peak to the intensity of the next bright peak in (a)? (f) Does this ratio depend on the wavelength of the light? (g) Does this ratio depend on the width or separation of the slits?
What is the highest-order maximum for 400-nm light falling on double slits separated by 25.0 m?
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