5. If the refractive index of glass with respect to air is3/2
refractive index of air with respect to glass?
(A) (B) 1.5 (C) 0.6 (D) None of these
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I don't know u do it yourself
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absolute refractive indices of glass ng = 3/2 and
of water is given as nw = 4/3.
Absolute Refractive Index of a medium
= Speed of light in vacuum/Speed of light in the medium
= v(vacuum)/v(medium)
Therefore,
V(vac.) / V(glass) = 3/2
and V(vac.) / V(water) = 4/3
Therefore the refractive index of glass
with respect to water = V(water)/V(glass)
={V(water)/V(vac.)} / [V(glass)/V(vac.)} = (3/4) /(2 /3) = 9/8 =1.125
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