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If the speed of light in a medium is 1.5...

If the speed of light in a medium is `1.5xx10^(8)m//s`, what is the absolute refractive index of the medium ?

Text Solution

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Given : `V_(m)=1.5xx10^(8)m//s`
`v_("vac")=3xx10^(8)m//s`
To find : ` " "_(m)n_("vac")=` ?
Formula : `" "_(m)n_("vac") =(V_(v))/(V_(m))`
Solution : `" "_(m)n_("vac")=(3xx10^(8))/(1.5xx10^(8))`
`" "_(m)n_("vac")=2`
Absolute refractive index of the medium is 2.
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