6- Two slits are illuminated by light that consists of two wavelengths. One wavelength is known to be 436 nm. On a screen, the fourth minimum of the 436-nm light coincides with the third maximum of the other light. What is the wavelength of the other light?
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For double-slit interference, bright fringes (maxima) satisfy d sinθ = m λ (m = 0, 1, 2, ...), and the nth dark fringe (minimum) satisfies d sinθ = (n - 1/2) λ (n = 1, 2, 3, ...). Show more…
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Two slits are illuminated by light that consists of two wavelengths. One wavelength is known to be 436 nm. On a screen, the fourth minimum of the 436-nm light coincides with the third maximum of the other light. What is the wavelength of the other light?
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