When the light is passed through the bottom of the sample
Chapter 36, Problem 36.71(choose chapter or problem)
When the light is passed through the bottom of the sample container, the interference maximum is observed to be at 41; when it is passed through the top, the corresponding maximum is at 37. What is the best explanation for this observation? (a) The microspheres are more tightly packed at the bottom, because they tend to settle in the suspension. (b) The microspheres are more tightly packed at the top, because they tend to float to the top of the suspension. (c) The increased pressure at the bottom makes the microspheres smaller there. (d) The maximum at the bottom corresponds to m = 2, whereas the maximum at the top corresponds to m = 1.
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