The speed of light in a medium is 2.239 x 10^8 m/s. Find the index of Using the index of refraction of propylene from the table provided, find 2 points refraction and identify the substance using the table of indices of the speed of light in propylene. Write out your answer by hand and upload refraction provided. Write out your answer by hand and upload a clear a clear image of your work. (2) image of your work. (3 marks) Material Refractive Index Material Refractive Index (n) (n) Acetic Acid 1.37 Acetic Acid 1.37 Acetone 1.36 Acetone 1.36 Alcohol, ethyl (ethanol) 1.36 Alcohol, ethyl (ethanol) 1.36 Alcohol, methyl (methanol) 1.33 Alcohol, methyl (methanol) 1.33 Carbon disulfide 1.63 Carbon disulfide 1.63 Decane 1.41 Decane 1.41 Dodecane 1.41 Dodecane 1.41 Ether 1.35 Ether 1.35 Ethylene glycol 1.43 Ethylene glycol 1.43 Heptane 1.38 Heptane 1.38 Hexane 1.37 Hexane 1.37 Octane 1.40 Octane 1.40 Propane 1.34 Propane 1.34 Propylene 1.36 Propylene 1.36 Propylene glycol 1.43 Propylene glycol 1.43 Water 1.33 Water 1.33 1 Add file 1 Add file