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ERIC Number: EJ1115435
Record Type: Journal
Publication Date: 2016-Sep
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0031-921X
Single-Slit Diffraction: Transitioning from Geometric Optics to the Fraunhofer Regime
Panuski, Christopher L.; Mungan, Carl E.
Physics Teacher, v54 n6 p356-359 Sep 2016
Suppose a red laser beam (of wavelength ? equal to 0.660 µm) is expanded using an optical telescope into a collimated, approximately plane wave that is 5.68 mm in diameter. Pass that beam through a tall rectangular slit whose width "a" is gradually reduced from 3.30 to 0.100 mm. Look at its image on a screen located at a distance "L" from the slit equal to 0.656 m. As the slit is narrowed, you predict that the width of the pattern will: (A) smoothly increase; (B) smoothly decrease; (C) increase and then decrease; or (D) decrease and then increase.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A