How to Draw Ray Diagram (Lower Sec Science & Physics)

Dispersion of white light

This is a video on dispersion of white light using a prism.

What colour can you see under lights of different colours?

Let's try this!

Click the image below to launch the interactive and explore.

Stage Lighting Interactive

Read about absorption of light

You've learned that coloured objects reflect some colours of the white light and absorb the other colours, and that the colours of an object depends on the colour it reflects into the observer's eyes.

Some of you are curious about how objects can absorb some colours of the white light. Let's read about it here: 

https://www.universetoday.com/87943/absorption-of-light

Color Vision - Lower Sec Science Light

Source:
https://phet.colorado.edu/en/simulation/color-vision

How does position affect the size of the shadow?

Check this out (click on image below to go to the simulation)

From the drop-down menu, choose "light travel in a straight line".

You can shift the light source, the object and the screen to change the distances between them.

A video on total internal reflection