Index of a Liquid
Difficulty: Easy · Topics: Refraction, Snell's Law, Wavelength
Suyuqlikning sindirish ko‘rsatkichi
The figure shows light travelling from air into a liquid. If the refractive index of air is 1, what is the refractive index of the liquid?
physics "view":[-3.0,-2.8,3.0,2.8],"alt":"Light in air meets a liquid at 60° and refracts at 30°; the reflected and refracted rays are perpendicular. A slider changes the angle of incidence.","params":["id":"a","label":"θ 1","min":0,"max":80,"step":1,"value":60,"unit":"°"],"let":"L":"2.6","s":"1.0 sinda/1.73205081","tir":"s = 1","r":"tir ? 90 : asind(s)","items":["type":"region","from":[-3.0,-2.8],"to":[3.0,0],"fill":"water","type":"line","from":[-3.0,0],"to":[3.0,0],"width":1.4,"type":"line","from":[0,2.65],"to":[0,-2.6999999999999997],"dash":"5 4","width":1.1,"type":"ray","colour":" DC2626","points":[["=-L sind(a)","=L cosd(a)"],[0,0]],"arrows":[0.55],"if":"!tir","type":"ray","colour":" DC2626","points":[[0,0],["=L sind(r)","=-L cosd(r)"]],"end":"arrow","arrows":[],"if":"!tir","type":"ray","colour":" DC2626","dash":"4 3","width":1.1,"arrows":[],"points":[[0,0],["=0.7 L sind(a)","=0.7 L cosd(a)"]],"if":"tir","type":"ray","colour":" DC2626","points":[[0,0],["=L sind(a)","=L cosd(a)"]],"end":"arrow","arrows":[],"type":"label","at":[2.0,0.55],"text":"air","anchor":"c","size":15,"type":"label","at":[2.0,-0.6],"text":"liquid","anchor":"c","size":15,"halo":false,"if":"a = 2","type":"angle","at":[0,0],"from":90,"to":"=90+a","r":0.85,"labelGap":0.4,"label":"=a 0°","upright":true,"if":"!tir && r = 2","type":"angle","at":[0,0],"from":-90,"to":"=-90+r","r":0.85,"labelGap":0.42,"halo":false,"label":"=r 0°","upright":true,"if":"tir","type":"label","at":[1.4,0.45],"text":"total internal reflection","anchor":"c","size":13,"if":"!tir && abs(a + r - 90) < 0.75","type":"right","at":[0,0],"from":"=90-a","to":"=-90+r","size":0.32],"scale":0.9
Rasmda havodan suyuqlikka o‘tayotgan yorug‘lik ko‘rsatilgan. Agar havoning sindirish ko‘rsatkichi 1 bo‘lsa, suyuqlikning sindirish ko‘rsatkichi nimaga teng?
physics "view":[-3.0,-2.8,3.0,2.8],"alt":"Light in air meets a liquid at 60° and refracts at 30°; the reflected and refracted rays are perpendicular. A slider changes the angle of incidence.","params":["id":"a","label":"θ 1","min":0,"max":80,"step":1,"value":60,"unit":"°"],"let":"L":"2.6","s":"1.0 sinda/1.73205081","tir":"s = 1","r":"tir ? 90 : asind(s)","items":["type":"region","from":[-3.0,-2.8],"to":[3.0,0],"fill":"water","type":"line","from":[-3.0,0],"to":[3.0,0],"width":1.4,"type":"line","from":[0,2.65],"to":[0,-2.6999999999999997],"dash":"5 4","width":1.1,"type":"ray","colour":" DC2626","points":[["=-L sind(a)","=L cosd(a)"],[0,0]],"arrows":[0.55],"if":"!tir","type":"ray","colour":" DC2626","points":[[0,0],["=L sind(r)","=-L cosd(r)"]],"end":"arrow","arrows":[],"if":"!tir","type":"ray","colour":" DC2626","dash":"4 3","width":1.1,"arrows":[],"points":[[0,0],["=0.7 L sind(a)","=0.7 L cosd(a)"]],"if":"tir","type":"ray","colour":" DC2626","points":[[0,0],["=L sind(a)","=L cosd(a)"]],"end":"arrow","arrows":[],"type":"label","at":[2.0,0.55],"text":"havo","anchor":"c","size":15,"type":"label","at":[2.0,-0.6],"text":"suyuqlik","anchor":"c","size":15,"halo":false,"if":"a = 2","type":"angle","at":[0,0],"from":90,"to":"=90+a","r":0.85,"labelGap":0.4,"label":"=a 0°","upright":true,"if":"!tir && r = 2","type":"angle","at":[0,0],"from":-90,"to":"=-90+r","r":0.85,"labelGap":0.42,"halo":false,"label":"=r 0°","upright":true,"if":"tir","type":"label","at":[1.4,0.45],"text":"to‘la ichki qaytish","anchor":"c","size":13,"if":"!tir && abs(a + r - 90) < 0.75","type":"right","at":[0,0],"from":"=90-a","to":"=-90+r","size":0.32],"scale":0.9