Fact 1: Aprism is used for refracting light.

Fact 2: Light seems to travel in rays or beams.

Given the two facts above, answer the question "what is a prism used to refract?" with the following options: 
- focusing a lens
 - photons
 - h2o
 - glass
 - oxygen
 - rays or beams
 - our nearest star
 - an electron lens


 

      rays or beams   