Categories > Ray Optics and Optical Instruments > Total Internal Reflection > A fish is a little away below the surface of a lake. If the critical angle is 49°, then the fish could see things above the water surface within an angular range of ${{ heta }^{o}}$ where

Ray Optics and Optical Instruments

Question: A fish is a little away below the surface of a lake. If the critical angle is 49°, then the fish could see things above the water surface within an angular range of ${{ heta }^{o}}$ where

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1) $\theta ={{49}^{o}}$
2) $\theta ={{90}^{o}}$
3) $\theta ={{98}^{o}}$
4) $\theta =24\frac{{{1}^{o}}}{2}$
Solution: Explanation: No Explanation
Total Internal Reflection

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