A diffraction grating is calibrated by using the 546.1 nm line of mercury vapor. The first-order maximum is found at an angle of 24.45°. Calculate the number of lines per centime- ter on this grating. Answer in units of lines/cm.

A diffraction grating is calibrated by using the 546.1 nm line of mercury vapor. The first-order maximum is found at an angle of 24.45°. Calculate the number of lines per centime- ter on this grating. Answer in units of lines/cm.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter36: Applications Of The Wave Model

Section: Chapter Questions

Problem 30PQ

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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

A diffraction grating is calibrated by using
the 546.1 nm line of mercury vapor. The
first-order maximum is found at an angle of
24.45°.
Calculate the number of lines per centime-
ter on this grating.
Answer in units of lines/cm.

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