A beam of parallel light is incident normally on a diffraction grating having 550 lines per mm. A telescope is used to observe the second order in the spectrum. Calculate the angular separation in radians of two spectral lines of wavelength 559 nm and 563 nm.

A beam of parallel light is incident normally on a diffraction grating having 550 lines per mm. A telescope is used to observe the second order in the spectrum. Calculate the angular separation in radians of two spectral lines of wavelength 559 nm and 563 nm.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 23P: Consider a single-slit diffraction pattern for =589 nm, projected on a screen that is 1.00 m from a...

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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.

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A beam of parallel light is incident normally on a diffraction grating having 550
6)
lines per mm. A telescope is used to observe the second order in the spectrum. Calculate the
angular separation in radians of two spectral lines of wavelength 559 nm and 563 nm.

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