Question

Cell phones contain rechargeable batteries that transform chemical energy into electrical energy. When using your cell phone, electrical energy is first transformed into ________________ that are transmitted through the air. A) sound waves. B) sound energy. C) mechanical energy. Eliminate D) electromagnetic waves




The answer is D

Answer 1

The answer is definitely D no doubt

Answer 2

Answer: Option (D) is the correct answer.

Explanation:

Electric field and magnetic field result in the formation of waves known as electromagnetic waves.

In cell phones, when chemical energy is converted into electrical energy then electrical energy first transforms into electromagnetic waves which travel through air.

After that this electromagnetic wave is transformed into sound energy due to which we are able to listen music, movies etc on our cell phones.