Quick Answer: The Refraction Cup consists of clear plastic semi-circular cells that are filled with different liquids so their refractive properties can be observed using a ray box or laser.
Last updated: October 2026
Key Features
Clear plastic semi-circular cells
Filled with different liquids to observe their refractive properties
Used with a ray box or laser
Angles measured with a printed protractor, not included
Technical Specifications
Specification
Value
Colour
Clear
Material
Plastic
Shape
Semi-circular cells
About This Product
Each semi-circular cell is filled with a liquid and a ray from a ray box or laser is passed through it, so the refractive properties of different liquids can be observed. Angles are read from a printed protractor, which is not included. Export supply of the Refraction Cup can be arranged to laboratories and schools in Oman, Eswatini, Tanzania, Sierra Leone and United States.
Frequently Asked Questions
Q1. Is a protractor supplied? No. Angles are measured using a printed protractor, which is not included.