Answer:
1.153
Explanation:
Refractive index of glass with respect to alccohol
=[tex]\frac{refractive index of glass}{refractive index of alcohol}[/tex]
=[tex]\frac{1.66}{x}[/tex]
Refractive index of glass with respective respect to alcohol
= [tex]\frac{1}{\sin C}[/tex]
Critical angle C is angle made in denser medium by ray of light with the vertical on the surface. In this case it is 44 degree.
So , [tex]\frac{1}{\sin C}[/tex] =[tex]\frac{1.66}{x}[/tex]
x = 1.66 \times \sin44
= 1.66 x 0.694
=1.153
