Respuesta :
glycerol or corn oil!!! -----> n=c/v----> (3x10^8) / (2.04x10^8)= 1.47
As we know that refractive index is given as
[tex]n = \frac{speed \ of \ light \ in \ air}{speed \ of \ light \ in \ medium}[/tex]
now we know that
speed of light in medium = [tex]2.04 \times 10^8[/tex] m/s
now refractive index is given as
[tex]n = \frac{3 \times 10^8}{2.04 \times 10^8}[/tex]
[tex]n = 1.47[/tex]
now we know that refractive index of glycerine is 1.473
So here this material will be GLYCERINE