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Transcribed Image Text:The figure below shows the standard setup for Young's double-slit experiment. The spacing between the slits is d, and the screen is a distance L away from the slits. The derivation of the
two-slit interference conditions assumes that the two lines of sight to a point P are parallel, since L>d, allowing us to approximate the path length difference as 42= dsıne. How
3.00 cm, d = 0.740 mm, and 0 =
good is this approximation? Suppose that L =
approximation for a case where L is closer to d.)
9.00°. (Under normal experimental conditions, L/d would be much larger than this, but we want to test the
Use geometry and trigonometry to compute the value for the actual path length difference A2. Enter your answer as a positive value.
337.3 m
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By what percentage does this value differ from the approximation Al=dsint? (Enter your answer as a positive number, without the percent sign. Be sure to keep lots of digits in your
calculations!)
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