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if wavelenght of light use in michelsons inferometre is 400 nm a diametre of 0.05mm and 500 fringes are observed.. then the wavelenght of light used is a.1*10^-7mb.1*10^-8mc. 2*10^-7md. 1.5*10^-7mcorrect ans is option B

if wavelenght of light use in michelsons inferometre is 400 nm a diametre of 0.05mm and 500 fringes are observed.. then the wavelenght of light used is a.1*10^-7mb.1*10^-8mc. 2*10^-7md. 1.5*10^-7mcorrect ans is option B

Grade:12th pass

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