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प्रश्न
The velocity of light in air is \(3 \times 10^{8} \mathrm{~ms}^{-1}\). Calculate the velocity of light in diamond of refractive index 2.5.
संख्यात्मक
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उत्तर
\[\mu = \frac{\text{speed of light in air}}{\text{speed of light in diamond}}\]
\[\text{Speed of light in diamond} = \frac{3 \times 10^{8}}{2.5}\]
\[= 1.2 \times 10^{8} \mathrm{~ms}^{-1}\]
Therefore, the velocity of light in diamond is \(1.2 \times 10^{8} \mathrm{~ms}^{-1}\).
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