TS EAMCET · Physics · Ray Optics
Consider a glass prism immersed in a liquid as shown below. The refractive index of glass and liquid is 1.5 and 1.2, respectively. A ray of light enters the prism perpendicular to the face \(A B\). The largest value of angle \(\theta\) is, if the ray is totally reflected at the face \(A C\), then
- A \(\cos ^{-1}(0.8)\)
- B \(\sin ^{-1}(0.8)\)
- C \(\cos ^{-1}(0.6)\)
- D \(\sin ^{-1}(0.4)\)
Answer & Solution
Correct Answer
(A) \(\cos ^{-1}(0.8)\)
Step-by-step Solution
Detailed explanation
The given situation is shown in the following figure. For the ray incident at face \(A C\) to be total internally reflected, if Angle of incidence \(=\) Critical angle…
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