Fact 1: Alaser is used for producing light.

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

Given the two facts above, answer the question "what is a laser used for producing?" with the following options: 
- Electrical energy
 - electricity
 - electron microscope
 - density
 - light bulbs
 - rays or beams
 - sounds
 - hydrogen and oxygen


 

      rays or beams   