- #1
amir11
- 22
- 0
I have a very basic question about wave interference and more specifically electromagnetic wave interference.
Suppose two beams of light each with amplitude A interfere with the same phase. the amplitude of the resulting beam is 2A. the two beams at the start have powers p= [itex]A^{2}[/itex] each. The resulting beam, on the other hand, has a power of 4[itex]A^{2}[/itex]!
Which part of this conclusion is wrong?
Suppose two beams of light each with amplitude A interfere with the same phase. the amplitude of the resulting beam is 2A. the two beams at the start have powers p= [itex]A^{2}[/itex] each. The resulting beam, on the other hand, has a power of 4[itex]A^{2}[/itex]!
Which part of this conclusion is wrong?