Use the Figure for the Next Two Questions $\lambda$ = 550 NmThe Distance Between the Lens and the Flat Surface at Interference

Multiple Choice

Use the figure for the next two questions.
-The interference pattern is from a convex lens placed on a flat reflecting surface using a monochromatic light of wavelength $\lambda$ = 550 nm.The distance between the lens and the flat surface at position A is

A) 275 nm
B) 550 nm
C) 687.5 nm
D) 825 nm
E) 962.5 nm