Question

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ǫᴜᴇsᴛɪᴏɴ :

ᴇxᴘʟᴀɪɴ ᴀʙᴏᴜᴛ ʀᴇʟᴀᴛɪᴠᴇ ʀᴇғʀᴀᴄᴛɪᴠᴇ ɪɴᴅᴇx.

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Answer 1

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The relative index of refraction is a ratio of the speed of light in one medium to the speed of light in another medium.

${\pink{\bold{\underline{Explaination}}}}$

When we measure speed of light in two different media, relative refractive index of medium 2 with respect to medium 1 is defined as the ratio of speed of light in medium 1 to speed of light in medium 2.

=> speed of light in 1st medium / speed of light in second medium

$\green{ hope \: it \: helps}$

$\huge\purple { purple \: you \: too..}$