Filter

Summary: A red filter takes away colours from white light. It transmits red light and absorbs the rest. It does not change the colour of light. You can see how filters work in Figure 3. Tags: science student-book-7 physics Created: 2026-05-21 Last Updated: 2026-05-21

Filter

A red filter takes away colours from white light. It transmits red light and absorbs the rest. It does not change the colour of light. You can see how filters work in Figure 3.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Physics/Light/3.5 Colour.md), Physics section.