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In a vacuum the speed of light is 300000000 m/s. If light slows
down to 200000000 m/s in glass, calculate the refractive index of
glass. Urgent pls hurry
Answers: 1
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In a vacuum the speed of light is 300000000 m/s. If light slows
down to 200000000 m/s in glass, cal...
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