3. Prisms and rainbows provide proof that white light is actually made up of many colours of light (red, orange, yellow, green, blue, indigo and violet). Name the process whereby white light is separated into its constituent colours and explain how this is possible.

Which accurately compares concave and convex lenses?

By what primary heat transfer mechanism does the sun warm the earth?

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?