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प्रश्न
The total internal reflection will take place only when an incident ray travelling in some denser medium strikes surface of separation at an angle which is ______ than critical angle.
विकल्प
greater
smaller
MCQ
रिक्त स्थान भरें
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उत्तर
The total internal reflection will take place only when an incident ray travelling in some denser medium strikes surface of separation at an angle which is greater than critical angle.
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