In One Experiment, a Photon Entered One Detector and That

question 63

Multiple Choice

In one experiment, a photon entered one detector and that detector then indicated the slit through which a second photon passed in a double- slit experiment that was some distance away from the first detector. This experiment shows that

• A) macroscopic detectors always exert actual forces on microscopic particles, even at a distance.
• B) it is possible for a detector to obtain complete information about a particle's simultaneous position and velocity, without causing a sudden change in the EM field.
• C) microscopic events are subject to Heisenberg's uncertainty principle whenever detectors are involved.
• D) macroscopic detectors can have non- local effects even on objects that they do not directly interact with.
• E) whenever a detector exerts an actual force on a particle, it causes the particles EM field to suddenly change.

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