What features make radio waves useful for transmission?
a. They are absorbed by the atmosphere and they move at the speed of light.
b. They are absorbed by the atmosphere and they move fast, though under the speed of light.
c. They are not absorbed by the atmosphere and they move at the speed of light.
d. They are not absorbed by the atmosphere and they move fast, though under the speed of light.
1 answer
c. They are not absorbed by the atmosphere and they move at the speed of light.