3 years ago

Which of the following is a true statement?

Physics

2 answers:

Bad White [126]3 years ago

6 0

Answer:

c. Electromagnetic waves do not always need a medium to travel.

Explanation:

As the name suggests Electromagnetic waves consist of Electric and Magnetic fields.

Electromagnetic waves are transverse waves.

In a given medium Electromagnetic waves cannot vary in speed. However their wavelength and frequency can vary.

When an Electromagnetic wave travels through a medium It does not displace the medium. So, electromagnetic waves do not need a medium to travel.

forsale [732]3 years ago

4 0

C. Electromagnetic waves do not always need a medium to travel.

Since they are transverse waves they do not need a material medium.

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