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A Light Source Simultaneously Emits Light of Two Wavelengths,460 Nm

Question 13

Multiple Choice

A light source simultaneously emits light of two wavelengths,460 nm and 654 nm,respectively.The source is used in a double-slit interference experiment where the slit spacing is a 0.0431 mm,and the distance between double slits and the screen is 0.90 m.What is the separation between the second-order bright fringes of the two wavelengths as they appear on the screen? (1 nm = 10−9 m)


A) 4.1E-3 m
B) 2.1E-3 m
C) 8.1E-3 m
D) 6.9E-3 m
E) 4.7E-2 m

Correct Answer:

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