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If the first order bright lines formed by two slits at a distance of 2 meters are 3 cm apart, find the wavelength of the light if the slit seperation is 9.12x10^-3 cm.

So, to find the wavelength, this is what I did.

wavelength = 9.12 * 10^-5m * (2m/(3*10^-2m)) = .00608m.

i'm not understanding what i am doing wrong. any input would be helpful. Thanks!

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# Light through slits

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