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The speed of light in air is 3 × 108 m/s. If the refractive index of glass is 1.5, find the time taken by light to travel a distance of 10 cm in the glass.

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The speed of light in air is 3 × 10<sup>8</sup> m/s. If the refractive index of glass is 1.5, find the time taken by light to travel a distance of 10 cm in the glass.






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