- #1
ManDay
- 159
- 1
Two perfectly coherent laser beams point at two different positions on a screen. The energy transmitted by each of the beams is dissipated at the screen - it's either reflected (and thus visible to an observer) or becomes a potential energy of some sort.
Now both beams are pointed at a single spot so that they interfere complete destructively. Where does the energy which is inserted at the one end of the laser go now?
Now both beams are pointed at a single spot so that they interfere complete destructively. Where does the energy which is inserted at the one end of the laser go now?