Physics · 2014
JEE Main · 19 April 2014, Shift 1 · Q23
A ray of light is incident from a denser to a rarer medium. The critical angle for total internal reflection is θ_iC and the Brewster's angle of…
A ray of light is incident from a denser to a rarer medium. The critical angle for total internal reflection is $\displaystyle \theta_{\mathrm{iC}}$ and the Brewster's angle of incidence is $\displaystyle \theta_{\mathrm{iB}}$, such that $\displaystyle \sin \theta_{\mathrm{iC}} / \sin \theta_{\mathrm{iB}}=\eta=1.28$. The relative refractive index of the two media is :
Official answer
(3)
$\displaystyle 0.8$
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