From Glass into Air
Difficulty: Easy · Topics: Refraction, Snell's Law
Shishadan havoga
As shown, a ray of light passes from glass into air. The refractive indices of air and glass are 1.0 and 1.5. The angle of incidence is θ 1 and the angle of refraction is θ 2. If θ 1 = 30^°, determine sinθ 2.
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Rasmda ko‘rsatilganidek, yorug‘lik nuri shishadan havoga o‘tadi. Havo va shishaning sindirish ko‘rsatkichlari 1.0 va 1.5. Tushish burchagi θ 1, sinish burchagi θ 2. Agar θ 1 = 30^° bo‘lsa, sinθ 2 ni aniqlang.
physics "view":[-3.4,-3.0,3.4,3.0],"alt":"A ray in glass meets the glass–air surface at θ1 to the normal and refracts into air at θ2; sliders change θ1 and the glass's index.","params":["id":"a","label":"θ 1","min":0,"max":70,"step":1,"value":30,"unit":"°","id":"ng","label":"n g","min":1.2,"max":2.0,"step":0.05,"value":1.5,"unit":""],"let":"s":"ng sind(a)","tir":"s = 1","r":"tir ? 90 : asind(s)","L":"2.8","items":["type":"region","from":[-3.4,-3.0],"to":[3.4,0],"fill":"glass","type":"line","from":[-3.4,0],"to":[3.4,0],"width":1.4,"type":"line","from":[0,2.9],"to":[0,-2.9],"dash":"4 4","width":1,"type":"ray","points":[["=-L sind(a)","=-L cosd(a)"],[0,0]],"arrows":[0.55],"if":"!tir","type":"ray","points":[[0,0],["=L sind(r)","=L cosd(r)"]],"arrows":[0.6],"if":"!tir","type":"ray","points":[[0,0],["=0.55 L sind(a)","=-0.55 L cosd(a)"]],"arrows":[],"dash":"4 4","width":1.1,"if":"tir","type":"ray","points":[[0,0],["=L sind(a)","=-L cosd(a)"]],"arrows":[0.6],"if":"a = 2","type":"angle","at":[0,0],"from":"=270-a","to":270,"r":0.8,"label":"θ 1","halo":false,"if":"!tir && r = 2","type":"angle","at":[0,0],"from":90,"to":"=90-r","r":0.8,"label":"θ 2","halo":false,"type":"label","at":[-2.3,0.5],"text":"n a = 1.0","anchor":"c","size":15,"type":"label","at":[-2.3,-0.55],"text":"n g = =ng 2","anchor":"c","size":15,"halo":false,"if":"tir","type":"label","at":[1.85,0.42],"text":"to‘la ichki qaytish","anchor":"c","size":14],"scale":0.95