Question

what is refrective index​

Answer 1

τнє rατiσ вєτωєєท τнє sρєє∂ σƒ ℓigнτ iท мє∂iυм τσ sρєє∂ iท α vαcυυм is τнє rєƒrαcτivє iท∂єx. ωнєท ℓigнτ τrαvєℓs iท мє∂iυм στнєr τнαท τнє vαcυυм, τнє ατσмs σƒ τнατ мє∂iυм cσทτiทυαℓℓy αвsσrв αท∂ rє-ємiτ τнє ραrτicℓєs σƒ ℓigнτ, sℓσωiทg ∂σωท τнє sρєє∂ ℓigнτ.

Answer 2

➣ AnSwer :-

⟹ Refractive index :-

• The ratio between the speed of light in medium to speed in a vacuum is the refractive index.
• When light travels in medium other than the vacuum, the atoms of that medium continually absorb and re-emit the particles of light, slowing down the speed light.