1. Apr 12, 2016 #1

   tffnyyy

   

   
   
   here is the problem. i got 0.5 from the fact that thickness = (m)(lambda)/(2nf)
   
   other equation for thickness is thickness = (m+1/2)(lambda)/(2nf)

    

   tffnyyy, Apr 12, 2016
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3. Apr 13, 2016 #2

   andrevdh

   

   Homework Helper

   It seems that you have value for the wavelength and or refractive index? Note also that they want the answer to two significant digits where you only supplied one. What are the units of d? Is it multiples of lambda? I notice that there is a lambda to the right of the answer?

    

   Last edited: Apr 13, 2016

   andrevdh, Apr 13, 2016

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