Question

An ice cube has a bubble inside. When viewed from one side, the apparent distance of the bubble is \( 12 \, \text{cm} \). When viewed from the opposite side, the apparent distance of the bubble is \( 4 \, \text{cm} \). If the side of the ice cube is \( 24 \, \text{cm} \), the refractive index of the ice cube is:

• A. \( \frac{4}{3} \)
• B. \( \frac{3}{2} \)
• C. \( \frac{2}{3} \)
• D. \( \frac{6}{5} \)

Hint:

To find the refractive index of an object with apparent depths viewed from two sides, equations for the real and apparent depths set up and solve for \( \mu \).