The Diagram Shows a Single Slit with the Direction to a Point

question 54

Multiple Choice

The diagram shows a single slit with the direction to a point P on a distant screen shown. At P, the pattern has its second minimum (from its central maximum) . If X and Y are the edges of the slit, what is the path length difference (PX) - (PY) ?

• A) \(\lambda\)/2
• B) \(\lambda\)
• C) 3\(\lambda\)/2
• D) 2\(\lambda\)
• E) 5\(\lambda\)/2

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