AP EAMCET · PHYSICS · Ray Optics
A ray of light refracts from medium 1 into a thin layer of medium 2, crosses the layer and is incident at the critical angle on the interface between the medium 2 and 3 as shown in the figure. If the angle of incidence of ray is \(\theta\), the value of \(\theta\) is
- A \(\sin ^{-1}\left(\frac{8}{9}\right)\)
- B \(\sin ^{-1}\left(\frac{13}{18}\right)\)
- C \(\sin ^{-1}\left(\frac{13}{16}\right)\)
- D \(\sin ^{-1}\left(\frac{8}{13}\right)\)
Answer & Solution
Correct Answer
(B) \(\sin ^{-1}\left(\frac{13}{18}\right)\)
Step-by-step Solution
Detailed explanation
As the light ray incident at critical angle,…
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