Define Refraction Index .
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Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. ... Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v.
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卂几丂山乇尺:-
➡️Rᴇғʀᴀᴄᴛɪᴠᴇ Iɴᴅᴇx (Iɴᴅᴇx ᴏғ Rᴇғʀᴀᴄᴛɪᴏɴ) ɪs ᴀ ᴠᴀʟᴜᴇ ᴄᴀʟᴄᴜʟᴀᴛᴇᴅ ғʀᴏᴍ ᴛʜᴇ ʀᴀᴛɪᴏ ᴏғ ᴛʜᴇ sᴘᴇᴇᴅ ᴏғ ʟɪɢʜᴛ ɪɴ ᴀ ᴠᴀᴄᴜᴜᴍ ᴛᴏ ᴛʜᴀᴛ ɪɴ ᴀ sᴇᴄᴏɴᴅ ᴍᴇᴅɪᴜᴍ ᴏғ ɢʀᴇᴀᴛᴇʀ ᴅᴇɴsɪᴛʏ.
➡️Tʜᴇ ʀᴇғʀᴀᴄᴛɪᴠᴇ ɪɴᴅᴇx ᴠᴀʀɪᴀʙʟᴇ ɪs ᴍᴏsᴛ ᴄᴏᴍᴍᴏɴʟʏ sʏᴍʙᴏʟɪᴢᴇᴅ ʙʏ ᴛʜᴇ ʟᴇᴛᴛᴇʀ ɴ ᴏʀ ɴ' ɪɴ ᴅᴇsᴄʀɪᴘᴛɪᴠᴇ ᴛᴇxᴛ ᴀɴᴅ ᴍᴀᴛʜᴇᴍᴀᴛɪᴄᴀʟ ᴇϙᴜᴀᴛɪᴏɴs.
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