Question

Define reflective index ?​

Answer 1

Refractive Index (Index of Refraction) is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. The refractive index variable is most commonly symbolized by the letter n or n' in descriptive text and mathematical equations.

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Answer 2

Answer:

ʀᴇꜰʟᴇᴄᴛɪᴠᴇ ɪɴᴅᴇx ɪꜱ ᴀ ᴠᴀʟᴜᴇ ᴄᴀʟᴄᴜʟᴀᴛᴇᴅ ꜰʀᴏᴍ ᴛʜᴇ ʀᴀᴛɪᴏ ᴏꜰ ᴛʜᴇ ꜱᴩᴇᴇᴅ ᴏꜰ ʟɪɢʜᴛ ɪɴ ᴠᴀᴄᴄᴜᴍᴇ ᴛᴏ ᴛʜᴀᴛ ɪɴ ᴀ ꜱᴇᴄᴏɴᴅ ᴍᴇᴅɪᴜᴍ ᴏꜰ ɢʀᴇᴀᴛᴇʀ ᴅᴇɴꜱɪᴛy