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AP EAMCET20227 Jul 2022Morning ShiftPhysicsRay OpticsActual

A beam of light is incident from air on the surface of a liquid. The angle of incidence is and the angle of refraction is . If the critical angle for liquid when surrounded by air is _c then _c is

Correct answer

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Step-by-step solution

Refractive index of liquid with respect to air, n_ l a = i r Here, i= and r= So, refractive index of liquid with respect to air, n_ l a = Now, if _c= angle of critical incidence for liquid then, refractive index of air with respect to liquid is n_ a l = 1 n_ l a = _c 90^ _c= 1 n_ l a =

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