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In the figure shown μl, μ2, μ3, μ4 and μ5 are the refractive indices of the mediums 1, 2, 3, 4 and 5 respectively. Consider the following:1. μl = μ2 2. μ3= μ4 = μ53. μ2 < μ3 4. μ4 > μ5 Which of the above are correct ?

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<img src='https://www.fatskills.com/images2word-image-265.png' /><br />In the figure shown μl, μ2, μ3, μ4 and μ5 are the refractive indices of the mediums 1, 2, 3, 4 and 5 respectively. Consider the following:<br />1. μl = μ2 2. μ3= μ4 = μ5<br />3. μ2 < μ3 4. μ4 > μ5 Which of the above are correct ?






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