The diagram shows a single slit with the direction to a point P on a distant screen (not shown). At P, the pattern has its maximum nearest the 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

Question

The diagram shows a single slit with the direction to a point P on a distant screen (not shown). At P, the pattern has its maximum nearest the 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

Quizplus · Accepted Answer

The Answer of The diagram shows a single slit with the direction to a point P on a distant screen (not shown). At P, the pattern has its maximum nearest the 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

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