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A transparent cube of 15cm edge contains a small air bubble.Its apparent depth when viewed through one face is 6cm and when viewed through opposite face is 4cm.The refractive index is..........
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A transparent cube of 15cm edge contains a small air bubble.Its apparent depth when viewed through one face is 6cm and when viewed through opposite face is 4cm.The refractive index is..........

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Shruti
15 मई
5558 दृश्य
1 उत्तर

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Pranav
14 मई

Real depth / apparent depth = refractive index h1 / 6 cm = μ => h1 = 6 μ cm h2 / 4cm = μ => h2 = 4 μ cm h1 + h2 = 15 cm = 10 μ => μ = 1.5 cm The bubble is in the middle of the width of the cube. So real depth from h1 one side face is equal to (15-h1) of the real depth from the opposite face.