Question

R.I of a given medium with respect to air is 1.6 . What is the speed of light in the given medium.​

Answer 1

$\begin{array}{|c|c|} \hline \bf Object & \bf {Refractive\:Index} \\\dfrac{\qquad\qquad\qquad\qquad}{}&\dfrac{\qquad\qquad\qquad\qquad}{} \\\sf Air & \sf 1.0003 \\ &\\\sf Ice & 1.31 \\ & \\ \sf Water & 1.33 \\&\\ \sf Alcohol & 1.36 \\&\\ \sf Kerosene & 1.44 \\&\\ \sf Liquefied\:  Quartz & 1.46 \\&\\ \sf Torpene-Tyne\:oil & 1.47 \\&\\ \sf Benzene & 1.50 \\&\\ \sf Crown\:Glass & 1.52 \\&\\ \sf Canada\:Balsum & 1.53 \\&\\ \sf Rock\:Salt & 1.54 \\&\\ \sf Carbon\:Di sulphate  & 1.63 \\&\\ \sf Dark\:Flint\:Glass & 1.65 \\&\\ \sf Ruby & 1.71 \\&\\ \sf Diamond & 2.42    \\ \hline \end{array}$