What will be the speed of light in a medium whose critical angle is 45 ?12 x\( {10 }^{ 8} \)22 x\( {10 }^{ 6} \)35 x\( {10 }^{ 8} \)45 x\( {10 }^{ 6} \)Answer & explanation+Correct answer: option 1μ = 1/ sin C
