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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 (\(\mu\)) \(=\)