test

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test

$\"\"/$

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A)d_0 > d_i B)d_0 = d_i C)d_i > d_0 D)d_i ≤ d_0 ",[144,147,150,153],{"_8":145,"_50":146},213364,"\\ltr{d_{0} > d_{i}}",{"_8":148,"_50":149},213365,"\\ltr{d_{0} = d_{i}}",{"_8":151,"_50":152},213366,"\\ltr{d_{i} > d_{0}}",{"_8":154,"_50":155},213367,"\\ltr{d_{i} ≤ d_{0}}",[],{"_135":158},[159],1519,"اذا كان البعد الصور $\"\"/$ في مرآة مقعرة يساوي بُعد الجسم $\"\"/$ فإن ...",{"_8":162,"_48":49,"_50":163,"_12":164,"_10":165,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":-5,"_61":-5,"_62":42,"_63":42,"_64":-5,"_65":166,"_95":179,"_97":42,"_132":42,"_133":180,"_70":163},55220,"يُستخدم المنشور في الضوء في…","55220-%D9%8A%D9%8F%D8%B3%D8%AA%D8%AE%D8%AF%D9%85-%D8%A7%D9%84%D9%85%D9%86%D8%B4%D9%88%D8%B1-%D9%81%D9%8A-%D8%A7%D9%84%D8%B6%D9%88%D8%A1-%D9%81%D9%8A%E2%80%A6-%D8%A7%D9%84%D8%A7%D9%86%D8%B9%D9%83%D8%A7%D8%B3-%D8%A7%D9%84%D8%AA%D8%AD%D9%84%D9%8A%D9%84-%D8%A7%D9%84%D8%A7%D8%B3%D8%AA%D9%82%D8%B7%D8%A7%D8%A8-%D8%A7%D9%84%D8%A7%D9%86%D9%83%D8%B3%D8%A7%D8%B1","يُستخدم المنشور في الضوء في… A)الانعكاس B)التحليل C)الاستقطاب D)الانكسار ",[167,170,173,176],{"_8":168,"_50":169},213320,"الانعكاس",{"_8":171,"_50":172},213321,"التحليل",{"_8":174,"_50":175},213322,"الاستقطاب",{"_8":177,"_50":178},213323,"الانكسار",[],{"_135":181},[137,182],1520,{"_8":184,"_48":49,"_50":185,"_12":186,"_10":187,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":188,"_61":188,"_62":42,"_63":42,"_64":-5,"_65":189,"_95":202,"_97":42,"_132":42,"_133":203,"_70":205},54435,"إذا كانت الإستضاءة \\ltr{50 lx} والمسافة \\ltr{2 m} ، فكم تصبح الإستضاءة بوحدة اللوكس إذا قلت المسافة إلى النصف؟","54435-%D8%A5%D8%B0%D8%A7-%D9%83%D8%A7%D9%86%D8%AA-%D8%A7%D9%84%D8%A5%D8%B3%D8%AA%D8%B6%D8%A7%D8%A1%D8%A9-%D9%88%D8%A7%D9%84%D9%85%D8%B3%D8%A7%D9%81%D8%A9-%D9%81%D9%83%D9%85-%D8%AA%D8%B5%D8%A8%D8%AD-%D8%A7%D9%84%D8%A5%D8%B3%D8%AA%D8%B6%D8%A7%D8%A1%D8%A9-%D8%A8%D9%88%D8%AD%D8%AF%D8%A9-%D8%A7%D9%84%D9%84%D9%88%D9%83%D8%B3-%D8%A5%D8%B0%D8%A7-%D9%82%D9%84%D8%AA-%D8%A7%D9%84%D9%85%D8%B3%D8%A7%D9%81%D8%A9-%D8%A5%D9%84%D9%89-%D8%A7%D9%84%D9%86%D8%B5%D9%81-200-150-100-50","إذا كانت الإستضاءة 50 lx والمسافة 2 m ، فكم تصبح الإستضاءة بوحدة اللوكس إذا قلت المسافة إلى النصف؟ A)50 B)100 C)150 D)200 ","",[190,193,196,199],{"_8":191,"_50":192},210246,"50",{"_8":194,"_50":195},210247,"100",{"_8":197,"_50":198},210248,"150",{"_8":200,"_50":201},210249,"200",[],{"_135":204},[137],"إذا كانت الإستضاءة $\"\"/$ والمسافة $\"\"/$ ، فكم تصبح الإستضاءة بوحدة اللوكس إذا قلت المسافة إلى النصف؟",{"_8":207,"_48":49,"_50":208,"_12":209,"_10":210,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":-5,"_61":-5,"_62":42,"_63":42,"_64":-5,"_65":211,"_95":224,"_97":42,"_132":42,"_133":225,"_70":208},53122,"طريقة مستعملة في التعرف على المادة من تردد الضوء:","53122-%D8%B7%D8%B1%D9%8A%D9%82%D8%A9-%D9%85%D8%B3%D8%AA%D8%B9%D9%85%D9%84%D8%A9-%D9%81%D9%8A-%D8%A7%D9%84%D8%AA%D8%B9%D8%B1%D9%81-%D8%B9%D9%84%D9%89-%D8%A7%D9%84%D9%85%D8%A7%D8%AF%D8%A9-%D9%85%D9%86-%D8%AA%D8%B1%D8%AF%D8%AF-%D8%A7%D9%84%D8%B6%D9%88%D8%A1-%D8%B7%D9%8A%D9%81-%D8%A7%D9%84%D8%A7%D9%86%D8%A8%D8%B9%D8%A7%D8%AB-%D8%A7%D9%84%D8%B0%D8%B1%D9%8A-%D8%A7%D9%84%D9%81%D9%84%D9%88%D8%B1%D8%A9-%D8%B7%D9%8A%D9%81-%D8%A7%D9%84%D8%A7%D9%85%D8%AA%D8%B5%D8%A7%D8%B5-%D8%A7%D9%84%D8%A7%D9%86%D8%A8%D8%B9%D8%A7%D8%AB-%D8%A7%D9%84%D8%AD%D8%B1%D8%A7%D8%B1%D9%8A","طريقة مستعملة في التعرف على المادة من تردد الضوء: A)الانبعاث الحراري B)طيف الانبعاث الذري C)طيف الامتصاص D)الفلورة ",[212,215,218,221],{"_8":213,"_50":214},205357,"الانبعاث الحراري",{"_8":216,"_50":217},205358,"طيف الانبعاث الذري",{"_8":219,"_50":220},205359,"طيف الامتصاص",{"_8":222,"_50":223},205360,"الفلورة",[],{"_135":226},[137,227,228],1530,1531,{"_8":230,"_48":49,"_50":231,"_12":232,"_10":233,"_56":234,"_117":-5,"_58":59,"_89":106,"_60":188,"_61":188,"_62":42,"_63":42,"_64":-5,"_65":235,"_95":248,"_97":42,"_132":42,"_133":249,"_70":251},53113,"إذا علمت أن \\ltr{E = hf} وسرعة الضوء تساوي \\ltr{3 \\times 10^8 m/s} وثابت بلانك \\ltr{6.626 \\times 10^{-34} J.s} و \\ltr{E = 19.3 \\times 10^{-19} J}، احسب الطول الموجي.","53113-%D8%A5%D8%B0%D8%A7-%D8%B9%D9%84%D9%85%D8%AA-%D8%A3%D9%86-%D9%88%D8%B3%D8%B1%D8%B9%D8%A9-%D8%A7%D9%84%D8%B6%D9%88%D8%A1-%D8%AA%D8%B3%D8%A7%D9%88%D9%8A-%D9%88%D8%AB%D8%A7%D8%A8%D8%AA-%D8%A8%D9%84%D8%A7%D9%86%D9%83-Js%7D-%D9%88-J%7D-%D8%A7%D8%AD%D8%B3%D8%A8-%D8%A7%D9%84%D8%B7%D9%88%D9%84-%D8%A7%D9%84%D9%85%D9%88%D8%AC%D9%8A-m%7D-m%7D-m%7D-m","إذا علمت أن E = hf وسرعة الضوء تساوي 3 ×10^8 m/s وثابت بلانك 6.626 ×10^-34 J.s و E = 19.3 ×10^-19 J، احسب الطول الموجي. A)1.03 ×10^-7 m B)1.3 ×10^-7 m C)1.03 ×10^-19 m D)1.09 ×10^-19 m ",42,[236,239,242,245],{"_8":237,"_50":238},205321,"\\ltr{1.03 \\times 10^{-7} m}",{"_8":240,"_50":241},205322,"\\ltr{1.3 \\times 10^{-7} m}",{"_8":243,"_50":244},205323,"\\ltr{1.03 \\times 10^{-19} m}",{"_8":246,"_50":247},205324,"\\ltr{1.09 \\times 10^{-19} m}",[],{"_135":250},[137,227],"إذا علمت أن $\"\"/$ وسرعة الضوء تساوي $\"\"/$ وثابت بلانك $\"\"/$ و $\"\"/$ ، احسب الطول الموجي.",{"_8":253,"_48":49,"_50":254,"_12":255,"_10":256,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":-5,"_61":-5,"_62":42,"_63":42,"_64":-5,"_65":257,"_95":270,"_97":42,"_132":42,"_133":271,"_70":273},52788,"في الشكل التالي ما قياس زاوية \\ltr{B^\\circ}؟\n11f08241_ae7e_b585_9230_f19531436039_00","52788-%D9%81%D9%8A-%D8%A7%D9%84%D8%B4%D9%83%D9%84-%D8%A7%D9%84%D8%AA%D8%A7%D9%84%D9%8A-%D9%85%D8%A7-%D9%82%D9%8A%D8%A7%D8%B3-%D8%B2%D8%A7%D9%88%D9%8A%D8%A9","في الشكل التالي ما قياس زاوية B^∘؟ A)15^∘ B)25^∘ C)75^∘ D)90^∘ ",[258,261,264,267],{"_8":259,"_50":260},204021,"\\ltr{15^\\circ}",{"_8":262,"_50":263},204022,"\\ltr{25^\\circ}",{"_8":265,"_50":266},204023,"\\ltr{75^\\circ}",{"_8":268,"_50":269},204024,"\\ltr{90^\\circ}",[],{"_135":272},[159],"في الشكل التالي ما قياس زاوية $\"\"/$ ؟ $\"\"$ ",{"_8":275,"_48":49,"_50":276,"_12":277,"_10":278,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":-5,"_61":-5,"_62":42,"_63":42,"_64":-5,"_65":279,"_95":292,"_97":42,"_132":42,"_133":293,"_70":276},52546,"أشعة ضوئية قوية جداً:","52546-%D8%A3%D8%B4%D8%B9%D8%A9-%D8%B6%D9%88%D8%A6%D9%8A%D8%A9-%D9%82%D9%88%D9%8A%D8%A9-%D8%AC%D8%AF%D8%A7%D9%8B-%D8%A7%D9%84%D8%A3%D8%B4%D8%B9%D8%A9-%D8%A7%D9%84%D9%83%D9%87%D8%B1%D9%88%D9%85%D8%BA%D9%86%D8%A7%D8%B7%D9%8A%D8%B3%D9%8A%D8%A9-%D8%A3%D8%B4%D8%B9%D8%A9-%D8%A8%D9%8A%D8%AA%D8%A7-%D8%A3%D8%B4%D8%B9%D8%A9-%D8%A3%D9%84%D9%81%D8%A7-%D8%A3%D8%B4%D8%B9%D8%A9-%D8%AC%D8%A7%D9%85%D8%A7","أشعة ضوئية قوية جداً: A)أشعة بيتا B)أشعة ألفا C)أشعة جاما D)الأشعة الكهرومغناطيسية ",[280,283,286,289],{"_8":281,"_50":282},203119,"أشعة بيتا",{"_8":284,"_50":285},203120,"أشعة ألفا",{"_8":287,"_50":288},203121,"أشعة جاما",{"_8":290,"_50":291},203122,"الأشعة الكهرومغناطيسية",[],{"_135":294},[137,295,296],1529,1533,{"_8":298,"_48":49,"_50":299,"_12":300,"_10":301,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":-5,"_61":-5,"_62":42,"_63":42,"_64":-5,"_65":302,"_95":315,"_97":42,"_132":42,"_133":316,"_70":299},52432,"عند وضع مرشحين بشكل معين وتسليط الضوء عليهم لم ينفذ أي ضوء، ما سبب عدم نفوذه؟","52432-%D8%B9%D9%86%D8%AF-%D9%88%D8%B6%D8%B9-%D9%85%D8%B1%D8%B4%D8%AD%D9%8A%D9%86-%D8%A8%D8%B4%D9%83%D9%84-%D9%85%D8%B9%D9%8A%D9%86-%D9%88%D8%AA%D8%B3%D9%84%D9%8A%D8%B7-%D8%A7%D9%84%D8%B6%D9%88%D8%A1-%D8%B9%D9%84%D9%8A%D9%87%D9%85-%D9%84%D9%85-%D9%8A%D9%86%D9%81%D8%B0-%D8%A3%D9%8A-%D8%B6%D9%88%D8%A1-%D9%85%D8%A7-%D8%B3%D8%A8%D8%A8-%D8%B9%D8%AF%D9%85-%D9%86%D9%81%D9%88%D8%B0%D9%87-%D9%84%D8%A3%D9%86%D9%87%D9%85%D8%A7-%D9%85%D8%AA%D8%B9%D8%A7%D9%85%D8%AF%D8%A7%D9%86-%D9%84%D8%A3%D9%86%D9%87%D9%85%D8%A7-%D9%85%D8%AA%D9%88%D8%A7%D8%B2%D9%8A%D8%A7%D9%86-%D9%84%D8%A3%D9%86-%D8%A7%D9%84%D8%B2%D8%A7%D9%88%D9%8A%D8%A9-%D8%A8%D9%8A%D9%86%D9%87%D9%85%D8%A7-%D9%84%D8%A3%D9%86-%D8%A7%D9%84%D8%B2%D8%A7%D9%88%D9%8A%D8%A9-%D8%A8%D9%8A%D9%86%D9%87%D9%85%D8%A7-%D8%B5%D9%81%D8%B1","عند وضع مرشحين بشكل معين وتسليط الضوء عليهم لم ينفذ أي ضوء، ما سبب عدم نفوذه؟ A)لأن الزاوية بينهما صفر B)لأنهما متعامدان C)لأنهما متوازيان D)لأن الزاوية بينهما 45^∘ ",[303,306,309,312],{"_8":304,"_50":305},202663,"لأن الزاوية بينهما صفر",{"_8":307,"_50":308},202664,"لأنهما متعامدان",{"_8":310,"_50":311},202665,"لأنهما متوازيان",{"_8":313,"_50":314},202666,"لأن الزاوية بينهما \\ltr{45^\\circ}",[],{"_135":317},[137],{"_8":319,"_48":49,"_50":320,"_12":321,"_10":322,"_56":57,"_117":-5,"_58":59,"_89":106,"_60":-5,"_61":-5,"_62":42,"_63":42,"_64":-5,"_65":323,"_95":336,"_97":42,"_132":42,"_133":337,"_70":320},52419,"الضوء يطلق عليه..","52419-%D8%A7%D9%84%D8%B6%D9%88%D8%A1-%D9%8A%D8%B7%D9%84%D9%82-%D8%B9%D9%84%D9%8A%D9%87-%D9%81%D9%88%D8%AA%D9%88%D9%86%D8%A7%D8%AA-%D9%86%D9%8A%D9%88%D8%AA%D8%B1%D9%88%D9%86%D8%A7%D8%AA-%D8%A8%D8%B1%D9%88%D8%AA%D9%88%D9%86%D8%A7%D8%AA-%D8%A7%D9%84%D9%83%D8%AA%D8%B1%D9%88%D9%86%D8%A7%D8%AA","الضوء يطلق عليه.. 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في الشكل شعاع يسقط على سطح عاكس فما الذي يمثله :test

في الشكل شعاع يسقط على سطح عاكس فما الذي يمثله $\ltr{A}$ :
test