Visible Light Flashcards
Do opaque objects transmit light?
No. When visible light waves hit them, they absorb some wavelengths of light and reflect others
The couloirs of an opaque object depend on…
Which wavelength of light are most strongly reflected (the other wavelengths of light are absorbed)
For opaque objects that aren’t a primary colour, they may be reflecting either…
The wavelengths of light corresponding to that colour or the wavelengths of the primary colours that can mix together to make the colour
White objects…
reflect all of the wavelengths is visible light equally
Black object…
absorb all wavelengths of visible light
Transparent and translucent objects…
transmit light i.e not all light that hits the surface is absorbed or or reflected- some can pass through
A transparent or translucent object’s colour is related to…
The wavelengths of light transmitted and reflected by it
Colour filters are used to…
Filter out different wavelengths of light so that only certain colours (wavelengths) are transmitted- the rest are absorbed
Filters that aren’t for primary colours let through…
Both the wavelengths of light for that colour AND the wavelengths of the primary colours that can be added together to make that colour
