6A40.45 Mirage

A mirage like effect can be demonstrated by shining a laser through a water-sugar mixture. On top is water only. On bottom is water with a large amount of sugar in it. A laser beam pointed slightly upwards will be bent downwards.

Picture: Not yet available. 

Setup Requirements: At least 1 day advance notice needed to prepare solution and fill fishtank.

Equations: n(1)sin(a) = n(2) sin(b) The index of refraction of the solution varies so the laser beam is bent in different directions as it move through fluid. 

Safety Issues: Laser, heavy tank filled with water.