Question

the refractive index of a glass is 3.3 find the speed of light in glass?

Answer 1

Answer:

$33 \times {10}^{7}$

Answer 2

Answer:

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➡️ Refractive index of a medium = Speed of light in vaccum / Speed of light in a given medium

let

the speed of light in glass = v

so ,

➡️ 3.3 = $\bf{(~3~*~10^8~)~/~v}$

➡️ V = $\bf{(~3~×~10^8~×~3~.~3~)}$

➡️ V = $\bf{(~3~×~10^8~×~33~/~10~)}$

➡️ V = $\bf{(9~.~9~×~10^8~)}$

➡️ V = $\bf{(99~×~10^7~)}$ m/s

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$\huge\red{AngelicDoll..!!}$