Answer :

Answer:

Electromagnetic radiation is made up of waves that are composed of photons which travel at the speed of light,  

c

, in a vacuum, which is exactly 299,792,458 m/s, usually rounded to three significant figures as  

3.00

x  

10

8

m/s

. Ask your instructor for his or her preference. All electromagnetic waves have wavelength and frequency.

Explanation:

Other Questions