Study the figure in which the path of a ray of light going from Medium 1 to Medium 2 is shown. (a) Out of…
Study the figure in which the path of a ray of light going from Medium 1 to Medium 2 is shown.
(a) Out of the two Media – Medium 1 and Medium 2, in which is the speed of light more ?
(b) State reason of bending of the refracted ray away from the normal.
(c) Express refractive index of Medium 2 with respect to Medium 1 in terms of speed of light in two media.
Solution
(a) Medium 2
(b) Ray bends away from the normal because it is travelling from optically denser medium to rarer medium / speed of light in medium 2 increases.
(c) n21 = Speed of light in medium $\dfrac{1}{Speed}$ of light in medium 2
