Verified Answer :

ayam42219

glycerol or corn oil!!! -----> n=c/v----> (3x10^8) / (2.04x10^8)= 1.47

As we know that refractive index is given as

\(n = \frac{speed \ of \ light \ in \ air}{speed \ of \ light \ in \ medium}\)

now we know that

speed of light in medium = \(2.04 \times 10^8\) m/s

now refractive index is given as

\(n = \frac{3 \times 10^8}{2.04 \times 10^8}\)

\(n = 1.47\)

now we know that refractive index of glycerine is 1.473

So here this material will be GLYCERINE

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