Snell's law — task. Physics CBSE Live product, Class 10 (2026-27).

Choose the correct answer:

A ray passes from air to a medium without bending. What is true?

\(n_1\ =\ n_2\)
\(n_1\ >\ n_2\)
\(n_1\ <\ n_2\)
\(i\ =\ 90^{\circ}\)

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