A ray of light enter from water to glass refractive index of glass with respect to water is 1.12 find absolute refraction index of water and air are 1.33 and 1.0 respectively
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Refractive index of glass w.r.t water ng/nw =1.22
refractive index of glass wrt to vacuum =1.5
the absolute refarctive index of water is calculated by the formula
ng/nw= ng/na *na/nw
1.12=1.5* na/nw
na/nw=1.12/1.5
nw/na =1.5/1.12
=1.33
hope it's help u....
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