Microwaves are electromagnetic waves used in broadcasting and telecommunications. When do these waves increase in frequency?
-when the source moves away from you
-when the source moves toward you
-when you move away from the source
-when you move away from the source and the source moves away from you

Question

Microwaves are electromagnetic waves used in broadcasting and telecommunications. When do these waves increase in frequency?
-when the source moves away from you
-when the source moves toward you 
-when you move away from the source 
-when you move away from the source and the source moves away from you

anonymous · Answer

i think it might be the last one what do u think??

nottim · Answer

y?