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Question
Total internal reflection can take place only if ______.
Options
light goes from an optically rarer medium (smaller refractive index) to optically denser medium
light goes from optically denser medium to rarer
mediumthe refractive indices of the two media are close to each other
the refractive indices of the two media are widely different.
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Solution
Total internal reflection can take place only if the light goes from an optically denser medium to a rarer medium.
Explanation:
The angle of incidence is greater than the critical angle.
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