A wedged shaped air film having an angle of 40 second is illuminated b – McqOptions

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1.	A wedged shaped air film having an angle of 40 second is illuminated by a monochromatic light and the fringes are observed vertically down through a microscope. The fringe separation between two consecutive bright fringes is 0.12 cm. The wavelength of light is:
A.	\[~5545\overset{o}{\mathop{A}}\,\]
B.	\[6025\overset{o}{\mathop{A}}\,\]
C.	\[4925\overset{o}{\mathop{A}}\,\]
D.	\[~4655\overset{o}{\mathop{A}}\,\]
Answer» E.

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