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Double-Slit Interference A pair of slits, separated by 0.120 mm, is illuminated by light of wavelength...

Double-Slit Interference

A pair of slits, separated by 0.120 mm, is illuminated by light of wavelength 643 nm. An interference pattern is observed on a screen 112 cm from the slits. Consider a point on the screen located at y = 2.10 cm from the central maximum of the pattern…

a) What is the path difference (in nm) for the two slits at location y?

b) What is the path difference in waves?

c) Is this a maximum, a minimum or an intermediate condition?

d) Starting from y = 1.80 cm and moving away from the center of the pattern, what is the next value of y for which there is a maximum, and which maximum is it?

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