A Wedge of Air Between Two Glass Plates Is Illuminated

question 28

Multiple Choice

A wedge of air between two glass plates is illuminated with 500 nm light.How much thicker (in nm) is the wedge at the 16th dark fringe than it is at the 6th?

• A)10,000
• B)100
• C)25
• D)5000
• E)2500

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