Light enters from air to glass having refract | vedclass

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Question

(D) The refractive index $(n)$ of a medium is defined as the ratio of the speed of light in a vacuum $(c)$ to the speed of light in that medium $(v)$:

Vedclass · Accepted Answer

$2 	imes 10^8 \, m \, s^{-1}$

Vedclass · Answer

(D) The refractive index $(n)$ of a medium is defined as the ratio of the speed of light in a vacuum $(c)$ to the speed of light in that medium $(v)$:$n = \frac{c}{v}$Given:Speed of light in vacuum $(c)$ = $3 	imes 10^8 \, m \, s^{-1}$Refractive index of glass $(n)$ = $1.50$Rearranging the formula to find the speed of light in glass $(v)$:$v = \frac{c}{n}$$v = \frac{3 	imes 10^8 \, m \, s^{-1}}{1.50}$$v = 2 	imes 10^8 \, m \, s^{-1}$Therefore,the speed of light in glass is $2 	imes 10^8 \, m \, s^{-1}$.

Light enters from air to glass having refractive index $1.50$. What is the speed of light in the glass? The speed of light in vacuum is $3 \times 10^8 \, m \, s^{-1}$.

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