1,3 mkm to'lqin uzinligida regenerator orasidagi masofa necha km ni tashkil etadi
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EDFA optik kuchaytirgich qaysi diapozonda signallarni kuchaytirish uchun mo’ljallangan? Выберите один ответ: a. 1200-1300 nm b. 1300-1400 nm c. 1530-1570 nm d. 750-800 nm Отзыв Правильный ответ: 1530-1570 nm Abror Ro‘zmatov, [22.05.2023 16:42] Qaysi turdagi optik modulyator eng katta tezkorlikka ega? Select one: a. magnitooptik modulyator b. yarim o’tkazgichli yupqa pardali optik modulyator c. akustooptik modulyator d. elektrooptik modulyator Feedback The correct answer is: yarim o’tkazgichli yupqa pardali optik modulyator Question 2 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Optik multipleksorning vazifasi nimadan iborat? Select one: a. optik nurlanishni OTga samarali (yo’qotishlarsiz) kiritish b. optik signalni kuchaytirish c. bir necha yorug’lik signallari oqimini bitta guruxli oqimga birlashtirish, zichlashtirish d. optik signallar oqimini bir necha oqimlarga ajratish Feedback The correct answer is: bir necha yorug’lik signallari oqimini bitta guruxli oqimga birlashtirish, zichlashtirish Question 3 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Ajralmaydigan optik ulagichlarning soni quyidagi munosabat bilan aniqlanadi Select one: a. nq.ay.u teng (lru/lqur) - 1 b. nq.ay.u teng lqur/2 c. nq.ay.u teng (ltr/lsek d. nq.ay.u teng lru/2 Feedback The correct answer is: nq.ay.u teng (lru/lqur) - 1 Question 4 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Ko’chkili fotodiodning p-i-n fotodioddan asosiy farqi nimada? Select one: a. tezkorligining yuqoriligida b. sezgirligining yuqoriligi; xarakteristika va parametrlarining nobarqarorligi; shovqin sathining yuqoriligida c. sezgirligining pastligida d. shovqin sathining yuqoriligida Feedback The correct answer is: sezgirligining yuqoriligi; xarakteristika va parametrlarining nobarqarorligi; shovqin sathining yuqoriligida Question 5 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Nurlanish to’lqin uzunligi qanday miqdoriy munosabat bilan aniqlanadi? Select one: a. λ teng ν / c b. λ teng ν/ α c. λ teng c* ν d. λ teng c / ν Feedback The correct answer is: λ teng c / ν Question 6 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Standart bir modali SF tolalarda shaffoflik darchalarining qaysi birida dispersiya 0 ga teng? Select one: a. xech birida b. uchinchi shaffoflik darchasida c. birinchi shaffoflik darchasida d. ikkinchi shaffoflik darchasida Feedback The correct answer is: ikkinchi shaffoflik darchasida Question 7 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Chastotaga boqliq xolda gradientli ko'p modali tolaning modalar soni quyidagi munosabat bilan aniqlanadi? Select one: a. N teng ν2 / 2 b. N teng ν / 2P c. N teng 3ν / 2 d. N teng ν2 / 4 Feedback The correct answer is: N teng ν2 / 4 Question 8 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Kanalli signallarni guruhli oqimga birlashtirishni qaysi qurilma bajaradi? Select one: a. optik demultipleksor b. optik multipleksor c. optik demultipleksor va optik multipleksor d. optik ulagichlar Feedback The correct answer is: optik multipleksor Question 9 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text O’zak va qobiq materiali sindirish ko’rsatkichlari nisbatining optimal bo’lishi nimaga olib keladi? Select one: a. nurning aks etishiga b. nurning o’zakdan qobiqqa o’tib ketishiga c. yorug’lik nurining o’zak ichiga to’liq ichki qaytishiga va nurning faqat optik tola o’zagi bo’ylab tarqalishiga d. nurning optik tola qobig’i bo’ylab tarqalishiga Feedback The correct answer is: yorug’lik nurining o’zak ichiga to’liq ichki qaytishiga va nurning faqat optik tola o’zagi bo’ylab tarqalishiga Question 10 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Bir modali optik tolaning minimal bukish ruxsat etilgan minimal radiusi nechaga teng? Select one: a. 10 sm b. 20 sm c. 15 sm d. bir modali tolalarga minimal bukilishlarga chegara mavjud emas Feedback The correct answer is: 10 sm Question 11 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text To’lqin uzunligi turlicha bo,lgan bir necha optik signallarni bir vaqtda kuchaytira oladigan retranslyator turini aniqlang? Select one: a. optik kuchaytirgich b. regenerator c. bunday turi mavjud emas Abror Ro‘zmatov, [22.05.2023 16:42] d. optik ulagich Feedback The correct answer is: optik kuchaytirgich Question 12 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text EDFA optik kuchaytirgichning aktiv qismi nimadan iborat? Select one: a. tuliy bilan legirlangan OTdan b. prazeodim bilan legirlangan OTdan c. erbiy bilan legirlangan bir modali OTdan d. ko’p modali OTdan Feedback The correct answer is: erbiy bilan legirlangan bir modali OTdan Question 13 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text To'lqin o'tkazuvchi tola dispersiyasi tolaning qanday parametrlariga boqliq? Select one: a. o'zak diametriga b. tolaning geometrik shakliga va tolaning sindirish ko'rsatkichi profiliga c. tolaning sindirish ko'rsatkichi profiliga d. tolaning parametrlariga boqliq emas Feedback The correct answer is: tolaning geometrik shakliga va tolaning sindirish ko'rsatkichi profiliga Question 14 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Optik signalni qabul qiluvchi modul (QqOM) ning vazifasi nimadan iborat? Select one: a. optik signalni elektr signaliga o’zgartirish b. OT dan qabul qilingan optik signalni elektr signalga o’zgartirish va unga elektr qurilmalar yordamida qayta ishlov berish c. elekr signalini optik signalga o’zgartirish d. optik signalni qabul qilish Feedback The correct answer is: OT dan qabul qilingan optik signalni elektr signalga o’zgartirish va unga elektr qurilmalar yordamida qayta ishlov berish Question 15 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Optik attenyuatorlar qanday maqsadlarda qo’llaniladi? Select one: a. kirish optik signallarining quvvatini kamaytirish maqsadida b. optik signallarni kodlash maqsadida c. kirish optik signallarining quvvatini oshirish maqsadida d. optik signallarni dispersiyasini kamaytirish maqsadida Feedback The correct answer is: kirish optik signallarining quvvatini kamaytirish maqsadida Question 16 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Optik modulyatorlarning qanday turlari mavjud? Select one: a. akustooptik, magnitooptik, elektrooptik, yupqa pardali yarim o’tkazgichli turlari b. yupqa pardali yarim o’tkazgichlituri c. akustooptik, magnitooptik turlari d. elektrooptik, yupqa pardali yarim o’tkazgichli turlari Feedback The correct answer is: akustooptik, magnitooptik, elektrooptik, yupqa pardali yarim o’tkazgichli turlari Question 17 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text ТОА tiziminig tuzilish sxemasidagi qaysi qurilma uzatish tizimining boshlang’ich signallarini,optik liniya trakti bo’ylab uzatishga moslab beradi? Select one: a. optoelektron qabul qiluvci modul (ОQq) b. moslashtiruvchi qurilma (МQ) c. optoelektron uzatuvchi modul (ОUz) d. uzatish tizimi (UT) Feedback The correct answer is: moslashtiruvchi qurilma (МQ) Question 18 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Optik kuchaytirgichlarda axborot signalining va damlash to’lqin uzunliklari orasidagi munosabat qanday bo’lishi kerak? Select one: a. λsign ≥ λdamlash b. λsign < λdamlash c. λsign teng λdamlash d. λsign >λdamlash Feedback The correct answer is: λsign ≥ λdamlash Question 19 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Uzatish tizimining energetik potentsialini ifodalovchi miqdoriy munosabatni ko’rsating? Select one: a. Ep teng puz – pqq, dBq b. Ep teng c/λ dBq c. Ep teng pqq - puz , dBq d. Ep teng puz + pqq, dBq Feedback The correct answer is: Ep teng puz – pqq, dBq Question 20 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Optik tola sindirish ko'rsatkichining diametr bo'yicha taqsimotiga ko'ra qanday guruhlarga ajraladi? Select one: a. poq'onali uch tishli b. poq'onali va gradientli c. poq'onali to'rt tishli d. uch tishli gradientli Oxunjon, [22.05.2023 18:35] Optik kuchaytirgich qanday asosiy parametrlar bilan tavsiflanadi? Select one: a. kuchayish koeffitsienti; damlash to’lqin uzunligi b. kuchayish koeffitsienti; kuchaytirish xarakteristikasining notekisligi; c. kuchaytirish diapozoni; nurlanish to’lqin uzunligi d. kuchayish koeffitsienti; to’yinish quvvati; shovqin omili; kuchaytirish diapozoni; kuchaytirish xarakteristikasining notekisligi; damlash to’lqin uzunligi Feedback The correct answer is: kuchayish koeffitsienti; to’yinish quvvati; shovqin omili; kuchaytirish diapozoni; kuchaytirish xarakteristikasining notekisligi; damlash to’lqin uzunligi Question 2 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Qaysi to’lqin uzunligi eng minimal so’nish qiymatiga ega? Select one: a. 1,3 mkm b. 0,85 mkm c. 1,28 mkm d. 1,55 mkm Feedback The correct answer is: 1,55 mkm Question 3 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text So’nish qaysi miqdoriy munosabatdan aniqlanadi? Select one: a. α teng Pqq + Puz dB/км b. α teng Puz-Pqq teng 10 lg(Puz / Pqq) dB/км c. α teng Pqq * Puz dB/км d. α teng Pqq - Puz dB/км Feedback The correct answer is: α teng Puz-Pqq teng 10 lg(Puz / Pqq) dB/км Question 4 Incorrect Mark 0.00 out of 1.00 Not flaggedFlag question Question text Chastotaga boqliq xolda gradientli ko'p modali tolaning modalar soni quyidagi munosabat bilan aniqlanadi? Select one: a. N teng 3ν / 2 b. N teng ν / 2P c. N teng ν2 / 4 d. N teng ν2 / 2 Feedback The correct answer is: N teng ν2 / 4 Question 5 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Xromatik dispersiya qanday tashkil etuvchilardan iborat? Select one: a. modalararo dispersiyadan b. modalararo va qutblangan moda dispersiyasidan c. material dispersiyasi va to’lqin uzatish bilan bog’liq dispersiyasidan d. qutblangan moda dispersiyasidan Feedback The correct answer is: material dispersiyasi va to’lqin uzatish bilan bog’liq dispersiyasidan Question 6 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Legirlash so’zi nimani anglatadi? Select one: a. aktiv soha maydonini kengaytirishni b. aralashmalarni qo’shishni c. signalllarni so’ndirishni d. signallarni to’g’rilashni Feedback The correct answer is: aralashmalarni qo’shishni Question 7 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text ps/nm/km o’lchov birligi nimani anglatadi? Select one: a. optik signal amplitudasining kamayishini b. optik signallarni regeneratsiylashni c. 1 nm o’lchamdagi optik impuls 1 km masofaga uzlatilganida 1 ps ga kengayishini d. 1 mkm implusni ns ga kengayishini Feedback The correct answer is: 1 nm o’lchamdagi optik impuls 1 km masofaga uzlatilganida 1 ps ga kengayishini Question 8 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Optik kushaytirgichlarda elektron cxema qo’llaniladimi? Select one: a. elektron cxema qo’llanilmaydi b. elektron cxema to’liq qo’llaniladi c. elektron cxema qo’llanilishi shart d. elektron cxema qisman qo’llaniladi Feedback The correct answer is: elektron cxema qo’llanilmaydi Question 9 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text O’zak diametriga bog’liq ravishda optik tolalar (ОТ) qanday turlarga bo’linadi? Select one: a. bir modali va ko’p modali ОТ b. bir modali va pog’anali ОТ c. ko’p modali va gradientli OT d. pog’onali va gradiyent OT Feedback The correct answer is: bir modali va ko’p modali ОТ Question 10 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Fotodiodning kvant samaradorligi qaysi munosabat bilan aniqlanadi? Select one: a. ɳ teng C/v b. ɳ teng Ne-k/Nfototok c. ɳ teng c P d. ɳ teng C/λ Feedback The correct answer is: ɳ teng Ne-k/Nfototok Question 11 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Vazifasiga ko'ra optik kabelning turlari qanday? Select one: a. korparatsion turi b. magistral, mintaqaviy(xududiy), mahalliy turi c. magistral, xududiy turi d. magistral, korparatsion turi Feedback The correct answer is: magistral, mintaqaviy(xududiy), mahalliy turi Question 12 Correct Mark 1.00 out of 1.00 Oxunjon, [22.05.2023 18:35] Not flaggedFlag question Question text Optik izolyatorning vazifasi nimadan iborat? Select one: a. yorug’likni teskari yo’nalishda o’tkazmaslikni ta’minlash b. yorug’likni bir yo’nalishda deyarli yo’qotihslarsiz uzatish va teskari yo’nalishga o’tkazmaslikni ta’minlash c. optik dispersiyasini kamaytirish uchun d. optik signallarni quvvatini oshirish Feedback The correct answer is: yorug’likni bir yo’nalishda deyarli yo’qotihslarsiz uzatish va teskari yo’nalishga o’tkazmaslikni ta’minlash Question 13 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text Modalararo dispersiyaning sodir bo'lish sababi nimada? Select one: a. toladagi mikrobukilishlardan b. modalarning tola bo'ylab turli yo'nalishda tarqalishidan va modalarning tola bo'ylab turli vaqtda tarqalishidan c. toladagi makrobukilish-lardan d. modalarning tola bo'ylab turli vaqtda tarqalishidan Feedback The correct answer is: modalarning tola bo'ylab turli yo'nalishda tarqalishidan va modalarning tola bo'ylab turli vaqtda tarqalishidan Question 14 Correct Mark 1.00 out of 1.00 Not flaggedFlag question Question text |