NEET · Physics · STD 12 - 9. Ray optics and optical instruments
Two transparent media \(A\) and \(B\) are separated by a plane boundary. The speed of light in those media are \(1.5 \times 10^{8}\,m / s\) and \(2.0 \times 10^{8}\,m / s\), respectively. The critical angle for a ray of light for these two media is :
- A \(\sin ^{-1}(0.750)\)
- B \(\tan ^{-1}(0.500)\)
- C \(\tan ^{-1}(0.750)\)
- D \(\sin ^{-1}(0.500)\)
Answer & Solution
Correct Answer
(A) \(\sin ^{-1}(0.750)\)
Step-by-step Solution
Detailed explanation
\(\mu=\frac{ C }{ u } \Rightarrow u \propto \frac{1}{\mu}\) Critical angle
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