A researcher directs a light beam from air into an unknown polymer

PHYSICS · Subjective · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A researcher directs a light beam from air into an unknown polymer. The beam arrives at

60^{\circ}

to the normal and is observed inside the polymer at

36^{\circ}

. Calculate the speed of light in the polymer, expressing your answer in

\text{m\,s}^{-1}

to three significant figures.