Question

refractive indices of alcohol and turpentine oil with respect to air are 1.36 and 1.47 respectively. find the refractive index of turpentine oil with respect to alcohol. In which of the two media the speed of light will be more?

Answer 1

refractive index = a
1a2 = refractive index of alcohol with respect to air ,i.e., a2/a1= 1.36/1= 1.36
similarly, 1a3 = a3/a1 = 1.47
therefore, 2a3 = a3/a2 = 1.47/1.36 = 1.08

Answer 2

hope this helps u

n alcohol =1.36

n turpentine oil= 1.47

alcohol with respect to turpentine oil= n alcohol / n  turpentine oil

                                                              = 1.47/1.36

alcohol with respect to turpentine oil= 1.08

in alcohol light will travel faster