In a Double-Slit Experiment,the Slit Separation Is 2

question 22

Multiple Choice

In a double-slit experiment,the slit separation is 2.0 mm,and two wavelengths,750 nm and 900 nm,illuminate the slits simultaneously.A screen is placed 2.0 m from the slits.At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?

• A) 1.5 mm
• B) 3.0 mm
• C) 4.5 mm
• D) 6.0 mm
• E) 9.0 mm

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