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..........

plz give its answer with solution

Your Answer

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.

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  • you are welcome

  • yes this is correct ans ...thanks for the solution

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