Distance between the central and second-order bright fringe


Two narrow slits are illuminated by a laser with a wavelength of 503 nm. The interference pattern on a screen located x = 5.50 m away shows that the second-order bright fringe is located y = 9.30 cm away from the central bright fringe. Calculate the distance between the two slits.

The screen is now moved 2.1 m further away. What is the new distance between the central and the second-order bright fringe?

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Physics: Distance between the central and second-order bright fringe
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