Physics · 2014
JEE Main · 9 April 2014, Shift 1 · Q23
A diver looking up through the water sees the outside world contained in a circular horizon. The refractive index of water is 4/3, and the diver's…
A diver looking up through the water sees the outside world contained in a circular horizon. The refractive index of water is $\displaystyle \frac{4}{3}$, and the diver's eyes are $\displaystyle 15$ cm below the surface of water. Then the radius of the circle is :
Official answer
(4)
$\displaystyle \frac{15 \times 3}{\sqrt{7}} \mathrm{~cm}$
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JEE Main 2014 Physics question, with the answer from NTA’s final answer key. Where our answers come from.