Question

CD's and DVD's both are applications of light. Light is used to read the information on the disc. Which property of light is used in this technology? A) Diffraction B) Interference C) Reflection D) Refraction

Answer 1

C) Reflection Hope this helps

Answer 2

C) Reflection

Step-by-step explanation:

-Diffraction: is the spreading of waves when they go around an object. It happens for example in X-rays.

- Interference: is when the waves meet and the distribution of energy of one wave is affected by the other. Interference can be seen in radio waves.

-Reflection is when the light falls in the surface of something and is sent back. An example are the CD's and DVD's.

-Refraction is when a wave changes direction when going from a medium to the other because of a variation in the speed. An application are the glasses.

According to this, the property of light that is used in CD's and DVD'S is reflection.