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4. Маҳсулот сифатини текшириш ишларини ташкил этиш:______________________
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5. Маҳсулот (товар) сифатини аниқлаш усуллари?...________________________
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5.1. Органолептик усул..._______________________________________________________
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5.2. Лаборатория усули...______________________________________________________
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5.3. Физикавий усул..._________________________________________________________
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5.4. Оптик усул...______________________________________________________________
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6. Хатоликлар келиб чиқиш шароитларига қараб асосий ва қўшимча хатоликларга бўлинади.
6.1. Асосий хатолик нима?________________________________________________________
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6.2. Қўшимча хатолик нима?______________________________________________________
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7. Халқаро бирликлар тизимининг когерент ҳосилавий бирликларини тузиш қоидалари?
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8. Халқаро бирликлар тизими бирликларини ўнли каррали ва улушли бирликларининг номлари ва белгиларини ҳосил қилиш қоидалари?...
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9. Халқаро бирликлар тизими...______________________________________________
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10. Моҳияти, тавсифлари ва бартараф этиш имкониятларига кўра хатоликлар:?
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10.1. Мунтазам хатоликлар…____________________________________________________
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10.2. Тасодифий хатоликлар…________________________________________________
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10.3. Қўпол хатоликлар..._______________________________________________________
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II. Амалий топшириқ
Мисол: Тезлик бирлиги mўғpu чизиқли ва бир текис ҳаракатланувчи
бу ерда v - тезлик;
S -ўтилган йўлнинг узунлиги;
t - моддий нуқтанинг ҳаракатдаги вақти.
S ва t ўрнига уларнинг СИ бирликлари қўйилса, қуйидаги тенглама чиқади:
Бинобарин, СИ тизимида тезлик бирлиги секундига метр. У, 1 c вақтда нуқта 1 m мaсофага силжийдиган тўғри чизиқли ва бир текис ҳаракатланувчи моддий нуқтанинг тезлигига генг.
Агар боғланиш тенгламаси 1 дан фарқ қилувчи сон коэффициентга эга бўлса, унда СИ когерент ҳосила бирлигини ҳосил қилиш учун, СИ бирликларининг шундай сон қийматлари танлаб олинадики, уни ўнг қисмидаги коэффициентга кўпайтирилиши натижасида умумий сон қиймати бирга тенг бўлиши керак.
Мисол: Агар энергия бирлигини ҳосил қилиш учун
тенглама ишлатилса,
бу ерда Е - кинетик энергия;
m - моддий нуқта массаси;
v -моддий нуқтанинг ҳаракатланиш тезлиги,
у холда CB тизимидаги когерент энергиясининг бирлигини ҳосил қилиш учун қуйидаги тенгламадан фойдаланилади.
Аниқланг:
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