For demonstrating refraction and reflection phenomena as a light beam crosses the boundary from water to air at various angles. Cell with built-in halogen lamp on training panel. Includes two slit diaphragms.
Refraction and reflection apparatus
Colour Filter
Tertiary Science Kit
A colour filter is a sheet of transparent material that modifies a light beam by selective absorption of some colours in relation to others. A neutral filter absorbs all wavelengths equally and merely serves to reduce the intensity of a beam of light