Which of the following experiments demonstrates the fact that the mere act of observation, or detection, causes changes in the microscopic world?
A) The detection of radioactive decay using a Geiger counter.
B) The electron double-slit experiment with a detector placed behind one of the slits.
C) The interference pattern that is detected on the screen in the electron double-slit experiment.
D) The photoelectric effect that results from the detection of light.
E) None of the above.
Question 2
When the inside of a refrigerator is cooled, does thermal energy flow from hot to cold, or is it from cold to hot? Does this happen spontaneously, or is outside assistance required?
A) From cold to hot. Since this is against the normal flow of thermal energy, outside assistance is required.
B) Only the Shadow knows.
C) From hot to cold. Since this is the normal way that thermal energy flows, no outside assistance is needed.
D) From cold to hot. Since this is the normal way that thermal energy flows, no outside assistance is needed.
E) From hot to cold. Since this is against the normal flow of thermal energy, outside assistance is required.
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