Рет қаралды 5,115
00:00 - Intro
01:22 - Properties of light
01:51 - What is wavelength? (λ)
02:13 - What is the frequency of a wave?
03:17 - why are the wavelength and frequency of light important?
03:38 - The relationship between energy and waves
03:54 - what is the electromagnetic spectrum? (types of light)
05:04 - What does light do to molecules?
06:34 - Light and color
07:15 - Why do things have color? - Chromophores
07:42 - Chromophores in organic substances
08:03 - The color in oranges (beta-carotene)
08:47 - The color green in paints (Chromium Oxide)
09:09 - Color absorption - experiment
09:25 - the colors of white light
10:51 - where the color of apples comes from (cyanidin)
12:01 - Absorption spectrum
13:20 - what is the length of maximum absorption
14:28 - Some questions...