Answer
When a light is placed behind the slits, it flashes to indicate which hole the electron has passed through. This means that the interference pattern is now absent. When the laser is one, the electrons hit positrons directly behind each slit, just as if they were normal particles.
Work Step by Step
When a light is placed behind the slits, it flashes to indicate which hole the electron has passed through. This means that the interference pattern is now absent. When the laser is one, the electrons hit positrons directly behind each slit, just as if they were normal particles.
