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Two lasers are shining on a double slit, with slit separation
d. laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. the lasers produce separate interference patterns on a screen a distance 4.50 m away from the slits. part a which laser has its first maximum closer to the central maximum?

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W0lf93
Answer: x(1) = n λ L / d = 1 . (d/ 20) . 4.2 / d = 0.21 m x(2) = 4.2 / 15 = 0.28 m So distance between them is 0.07 m b) x(1) = 0.42 ( for the 2nd max ) x(2) = 2.5 . 0.28 = 0.7 m ( for the 3rd in ) Separation = 0.28 m

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