정답
$n_1 \sin\theta_1 = n_2 \sin\theta_2$, where angles $\theta$ are measured relative to the normal line.
해설
When moving into an optically denser medium ($n_2 > n_1$), light bends toward the normal line ($\theta_2 < \theta_1$).
홈 / 라이브러리 / CSAT (Suneung) essentials: original practice / AI 플래시카드
덱 'CSAT (Suneung) essentials: original practice'의 플래시카드.
$n_1 \sin\theta_1 = n_2 \sin\theta_2$, where angles $\theta$ are measured relative to the normal line.
When moving into an optically denser medium ($n_2 > n_1$), light bends toward the normal line ($\theta_2 < \theta_1$).