Optics - Production Of Light Quiz

A _______is a light producing electronic device that allows an electric current to flow in only one direction.  Now used in Christmas lights illuminated signs, and traffic lights.

A _____________ light tube is filled with very low-pressure mercury vapour. The inner surface of the tube is also coated with a fluorescent material. 

Light from an electric discharge, such as lightning is produced by an electric current passing through a _______. 

Fluorescence occurs when an object absorbs _______________ light and immediately releases the energy as visible light.

______________________ is the production of light as a direct by-product of a chemical reaction. Light sticks operate by causing two chemicals to mix.

When chemiluminescence occurs in living organisms, scientists call it ____________________.

Any object, as it gets hotter and hotter, will eventually produce __________ of varying colors.