Light of wavelength 427 nm (in vacuum) is incident on a diffraction grating that has a slit separation of 1.2 x 105 m. The distance between the grating and the viewing screen is 0.17 m. A diffraction pattern is produced on the screen that consists of a central bright fringe and higher-order bright fringes (see the drawing). (a) Determine the distance y from the central bright fringe to the second- order bright fringe. (Hint: The diffraction angles are small enough that the approximation tan(0)- sin(0) can be used.) (b) If the entire apparatus is submerged in water (nwater = 1.33), what is the distance y? Diffraction grating Screen 2nd-order maximum Central maximum (m= 0)
Light of wavelength 427 nm (in vacuum) is incident on a diffraction grating that has a slit separation of 1.2 x 105 m. The distance between the grating and the viewing screen is 0.17 m. A diffraction pattern is produced on the screen that consists of a central bright fringe and higher-order bright fringes (see the drawing). (a) Determine the distance y from the central bright fringe to the second- order bright fringe. (Hint: The diffraction angles are small enough that the approximation tan(0)- sin(0) can be used.) (b) If the entire apparatus is submerged in water (nwater = 1.33), what is the distance y? Diffraction grating Screen 2nd-order maximum Central maximum (m= 0)
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 14P: Coherent light rays of wavelength strike a pair of slits separated by distance d at an angle 1,...
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