JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
An ice cube has a bubble inside. When viewed from one side the apparent distance of the bubble is \(12\,cm\). when viewed from the opposite side, the apparent distance of the bubble is observed as \(4\,cm\). If the side of the ice cube is \(24\,cm\), the refractive index of the ice cube is \(.....\).
- A \(\frac{4}{3}\)
- B \(\frac{3}{2}\)
- C \(\frac{2}{3}\)
- D \(\frac{6}{5}\)
Answer & Solution
Correct Answer
(B) \(\frac{3}{2}\)
Step-by-step Solution
Detailed explanation
\(d _{\text {appprent }}=\frac{ d _{\text {actual }}}{\mu_{\text {rel }}}\) \(12=\frac{ x }{\mu}\) \(4=\frac{24- x }{\mu}\) On solving we get \(\mu=1.5\)
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