Quick Answer: The Set of 3 Diffraction Gratings contains one grating each of 100, 300 and 600 lines/mm, so students can compare how line density changes the diffraction angle and spectral spread. The gratings are in 50 mm × 50 mm slide format.
Last updated: October 2026
Key Features
Gratings of 100, 300 and 600 lines/mm
50 mm × 50 mm slide format
For wavelength determination and first- and second-order spectra
Used with spectrometers, optical benches, laser sources, slits and screens
Technical Specifications
Specification
Value
Set
3 gratings
Grating densities
100 lines/mm, 300 lines/mm, 600 lines/mm
Slide format
50 mm × 50 mm
Mounting
50 mm optical rail holders and optical bench setups
About This Product
One grating at a time is mounted so the beam falls normally on it, the diffraction angle is measured for each order, and the grating equation gives the wavelength. Repeating with the other two densities shows the effect of grating pitch on the spread of the visible spectrum. Enquiries from Cabo Verde, Kiribati, Sierra Leone, Belgium, New Zealand and Luxembourg for the Set of 3 diffraction gratings receive an export quotation.
Frequently Asked Questions
Which grating densities are in the set?
One diffraction grating each of 100, 300 and 600 lines/mm.
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