Digital ACT Science Practice Question #1310
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Core rule: Higher index $n$ = slower speed + bends toward the normal. Lower index $n$ = faster speed + bends away from normal.
According to Snell's Law $n_1 \sin(\theta_1) = n_2 \sin(\theta_2)$, when light passes into an optically denser medium ($n_2 > n_1$), $\sin(\theta_2) = (n_1/n_2)\sin(\theta_1) < \sin(\theta_1)$, so the angle $\theta_2$ decreases (bends towar...
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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