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Speed of light in glass is 2xx 10^(8) ms...

Speed of light in glass is `2xx 10^(8) ms^(-1)` . Find the refractive index of glass.

Text Solution

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Given
Velocity of light in air, c`=3xx10^(8) ms^(-1)`
Velocity of light in glass, `v=2 xx 10^(8) ms^(-1)`
To find : Refractive index of glass,
`mu=c/v =?`
`mu=(3xx10^(8))/(2xx10^(8))=1.5`
`mu=1.5` (No unit)
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