allerySame real depth, near-normal air view: apparent 6 cm at n=4/3, 4 cm in X. Find nX.
A1.5
B3.0
C2.0
D8/9
Answer & Solution
Correct answer: C. 2.0
The real depth is 6×4/3 = 8 cm, so the other liquid has n=8/4 = 2.
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