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प्रश्न
What is the speed of light in a denser medium of polarizing angle 30?
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उत्तर
`μ = tani_p`
`μ = tan30^circ = 1/sqrt(3)`
`μ = c/V = 1/sqrt(3)`
`V = c xx sqrt(3)`
`V = 3sqrt(3) xx 10^8` m/s
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