Thursday, November 11, 2010

Crooked Pencil

Fill a glass with water.

Place a pencil in the water.

Look through the side of the glass at the pencil - what do you see?


The pencil looked bent because light travels slower through water than it does through air.  This causes the light rays to bend - refraction.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.