PhysicsMedium105×since 2002Q7091A fish looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is 43{4 \over 3}34 and the fish is 121212 cmcmcm below the surface, the radius of this circle in cmcmcm isA367{{36} \over {\sqrt 7 }}736B367{36\sqrt 7 }367C45{4\sqrt 5 }45D365{36\sqrt 5 }365Check answerSkip