Physics · 2013
JEE Main · 23 April 2013, Shift 1 · Q19
A light ray falls on a square glass slab as shown in the diagram. The index of refraction of the glass, if total internal reflection is to occur at…
A light ray falls on a square glass slab as shown in the diagram. The index of refraction of the glass, if total internal reflection is to occur at the vertical face, is equal to :
Official answer
(4)
$\displaystyle \sqrt{\frac{3}{2}}$
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JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.