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Two narrow slits are illuminated by a laser with a wavelength of 541 nm. The interference...

Two narrow slits are illuminated by a laser with a wavelength of 541 nm. The interference pattern on a screen located x = 4.60 m away shows that the third-order bright fringe is located y = 8.60 cm away from the central bright fringe. Calculate the distance between the two slits.

a.) 8.68×10-3 cm

The screen is now moved 2.3 m further away. What is the new distance between the central and the third-order bright fringe?

b.) ????

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