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1. Refractive index of water is \frac{4}{3} and the refractive index of glass is \frac{3}{2}. Find the refractive index of glass with respect to the refractive index of water.
  
From the data given,
 
Refractive index of water (\mu_w) = \frac{4}{3}
 
Refractive index of glass (\mu_g) = \frac{3}{2}
 
The formula to calculate the refractive index of glass with respect to the refractive index of water is,
 
 
Substitute the known values,
 
Refractive index of a medium (\mu) =