railway RRB Technician Grade 3 Mock Test 2024 Physics Electromagnetic Waves Polarization by Reflection

জলের প্রতিসরণ সূচক 4/3 এবং কাচের জন্য এটি 3/2 জলের সাপেক্ষে এটি _____

1
\(\frac{8}{9}\)
2
\(\frac{9}{8}\)
3
\(\frac{2}{3}\)
4
\(\frac{3}{2}\)
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