Evaluate what is the unknown wavelength

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In a double-slit experiment, two parallel slits are illuminatedfirst by light of wavelength 464 nm, and then bylight of unknown wavelength. The third-order(m = 3) dark fringe resulting from the knownwavelength of light falls in the same place on the screen as thesecond-order (m = 2) bright fringe from theunknown wavelength. What is the unknown wavelength?

Reference no: EM13648448

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