Which expression correctly gives the speed of light in a transparent medium of index…

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

Which expression correctly gives the speed

v

of light in a transparent medium of index of refraction

n

in terms of the speed of light in vacuum

c

? (a)

v = \dfrac{c}{n^{2}}

(b)

v = n\,c

(c)

v = \dfrac{c}{n}

(d)

v = \dfrac{c}{\sqrt{n}}