AP EAMCET · PHYSICS · Ray Optics
An object lying 100 cm inside water is viewed normally from air. If the refractive index of water is \(\frac{4}{3}\), then the apparent depth of the object is
- A 100 cm
- B 50 cm
- C 25 cm
- D 75 cm
Answer & Solution
Correct Answer
(D) 75 cm
Step-by-step Solution
Detailed explanation
Real depth \(=100 \mathrm{~cm}, \mu=\frac{4}{3}\) \(\therefore \quad\) Apparent depth \(=\frac{\text { Real depth }}{\mu}=\frac{100 \times 3}{4}=75 \mathrm{~cm}\)
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