A two-slit pattern is viewed on a screen 1.40 m from the slits. What is the width of the central fringe if the two third-order minima are 22.5 cm apart? Please give your answer to three significant figures.
L = 1.40 m, 2x3 = 22.5 cm, find 2x1
x3 = 2.5λL/d
x1 = 0.5λL/d = x3/5
∴2x1 = 2x3/5 = 22.5cm/5 = 4.5 cm
A two-slit pattern is viewed on a screen 1.40 m from the slits. What is the...
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