Splitting Light

We use a prism to split white light into its constituent colours. Light is passed through a slit in a screen before it hits the prism. The prism refracts the light and we can see the different colours. A second slit can be used to see the different colours clearly.

Physics - Waves - Learning Points.
Light refracted by a prism is split into a spectrum.
Light is refracted twice in a prism: once entering and once leaving.
Violet light is refracted more than red light.
The wavelength of light determines the colour we see.
Violet light has a short wavelength; red light has a long wavelength.
Visible light, which is the part of the spectrum seen by humans, has a wavelength range from 380 to 780 nm.
Individual wavelengths of light can be isolated using a screen with a slit.
Wavelengths can be combined to form colour images.

A Twig Experiment Film.
Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.