Quick Answer: The Demonstration Diffraction Grating Slide carries seven photographic emulsion apertures: single, double, triple, quadruple, quintuple and sextuple slits plus a circular aperture. It is 50 mm x 50 mm in a protective frame for use on an optical bench.
Last updated: October 2026
Key Features
Seven patterns on one slide
Single, double, triple, quadruple, quintuple and sextuple slits
Circular aperture
Apertures in photographic emulsion
Protective frame, 50 mm x 50 mm
Technical Specifications
Specification
Value
Patterns
Single, double, triple, quadruple, quintuple and sextuple slits; circular aperture
Aperture medium
Photographic emulsion
Mounting
Protective frame
Size
50 mm x 50 mm
HS Code
9023.00.00
About This Product
Shining a laser or narrow light beam through each pattern in turn shows how the fringe pattern sharpens as the number of slits increases, from single-slit diffraction to the bright, narrow maxima of a grating. The circular aperture adds the ring pattern seen in telescopes and the eye, and the fringe spacings can be used to estimate the wavelength of light.
Frequently Asked Questions
What patterns are on the Demonstration Diffraction Grating Slide?
It has single, double, triple, quadruple, quintuple and sextuple slits and a circular aperture.
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