Disks for Newton’s rings
Product Code : SCL-OS-12832
Quick Answer: Disks for Newton’s Rings are optical accessories used with a Newton’s rings apparatus, where a curved and a flat surface trap a thin air film. Under monochromatic light the film produces concentric bright and dark interference rings.
Last updated: October 2026
Key Features
- Used with a Newton’s rings apparatus to form a thin air film between a curved and a flat surface
- Produces circular bright and dark interference fringes in monochromatic light
- Ring diameters are measured to calculate wavelength
- Used with an optical bench or microscope set-up and a monochromatic light source
Technical Specifications
| Specification | Value |
|---|---|
| Experiment type | Newton’s rings / thin-film interference experiment |
| Learning concepts | Thin-film interference, monochromatic light, air-film thickness, fringe diameter, optical path difference, wavelength measurement |
| Compatible apparatus | Newton’s rings apparatus, optical bench, microscope setup, monochromatic light source |
About This Product
Newton’s rings link wave theory to a pattern students can see and measure. The thin air film between the curved and flat surfaces makes reflected light interfere, giving alternating bright and dark rings, and measuring their diameters against ring order leads to the wavelength of the light. Educational Instrument can dispatch the Disks for Newton’s rings to laboratories in Eswatini, Mongolia, Mauritius, Cabo Verde and Barbados.
Frequently Asked Questions
What light source is needed with the Disks for Newton’s Rings?
A suitable monochromatic light source, so that interference in the air film produces clear concentric bright and dark rings.
Related: Optical Sectional, Newton’s Ring Lens Set and Newton's Ring Experiment Microscope.
For a quotation on the Disks for Newton’s rings, contact Educational Instrument.
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