Video: Koj txhais li cas los ntawm tag nrho magnification?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teb thiab piav qhia:
Tag nrho magnification yog thaum cov khoom raug saib loj mus rau nws qhov siab kawg nkaus
Yog li ntawd, dab tsi yog lub ntsiab lus ntawm tag nrho magnification?
Qhov piv ntawm qhov loj ntawm ib daim duab rau qhov loj ntawm ib qho khoom. Txhais tag nrho magnification . Cov khoom ntawm lub hom phiaj lens thiab lub qhov muag lens. (Piv txwv li 40x + 10x = 400x)
Ib yam li ntawd, tag nrho qhov loj ntawm 4x 10x thiab 40x yog dab tsi? Lub Hom Phiaj Lenses: Feem ntau koj yuav pom 3 lossis 4 lub hom phiaj lo ntsiab muag ntawm lub tshuab tsom. Lawv yuav luag ib txwm muaj 4x, 10x, 40x thiab 100 x hwj chim. Thaum ua ke nrog 10x (feem ntau) lub ntsej muag lub ntsej muag, tag nrho qhov kev nthuav dav yog 40x (4x zaug 10x), 100 x , 400x thiab 1000x.
Hais txog qhov no, qhov kev suav ntawm tag nrho magnification yog dab tsi?
Yuav xam qhov tag nrho magnification ntawm ib daim duab uas koj tab tom saib los ntawm lub microscope yog qhov yooj yim heev. Kom tau txais cov tag nrho magnification coj lub hwj chim ntawm lub hom phiaj (4X, 10X, 40x) thiab muab faib los ntawm lub hwj chim ntawm lub qhov muag, feem ntau yog 10X.
Tag nrho qhov loj ntawm 10x thiab 50x yog dab tsi?
Koj muab lub zog ntawm lub qhov muag thiab lub zog ntawm lub hom phiaj siv. tag nrho mag. = ocular x objective Piv txwv li, yog lub ocular yog 10x ib thiab lub hom phiaj qis zog yog 20x, ces tus tag nrho magnification nyob rau hauv qis zog yog 10 x 20 = 200x.
Pom zoo:
Yuav ua li cas koj pom tag nrho qhov chaw ntawm lub tog raj kheej hollow?
Ib lub tog raj kheej yog ib qho khoom uas muaj ib qho sib xws, ncig-seem. Curved cheeb tsam ntawm ib lub tog raj kheej = 2 π rh. Tag nrho qhov chaw ntawm lub tog raj kheej = 2 π r h + 2 π r2 Curved deg cheeb tsam ntawm lub tog raj kheej hollow = 2 π R h + 2 π r h. Tag nrho qhov chaw ntawm lub tog raj kheej hollow = 2 π R h + 2 π r h + 2 (π R2 − πr2)
Vim li cas nws yog ib lub tswv yim zoo los cawm tag nrho cov txheej txheem ntawm koj cov extraction kom txog thaum kawg ntawm kev sim?
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Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Cov cai los nrhiav cov khoom ntawm ib feem feem thiab tag nrho tus lej Peb xub sau tag nrho cov lej ua ib feem, piv txwv li, sau nws faib los ntawm ib qho; Piv txwv li: 7 yog sau ua 71. Peb mam li muab cov zauv. Peb muab cov denominators. Yog tias yuav tsum tau ua kom yooj yim, nws ua tiav thiab tom qab ntawd peb sau cov feem kawg
Yuav ua li cas koj nrhiav tau tag nrho saum npoo ntawm ib tug kheej kheej?
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Ntau npaum li cas ntawm cov pej xeem hauv ntiaj teb nyob ntawm cov kab ke roob rau tag nrho lossis qee qhov ntawm lawv cov dej?
Roob yog lub ntiaj teb "dej yees," muab 60-80% ntawm tag nrho cov dej tshiab rau peb ntiaj chaw. Tsawg kawg ib nrab ntawm lub ntiaj teb cov pej xeem nyob ntawm roob ecosystem kev pabcuam kom muaj sia nyob - tsis yog dej xwb, tab sis kuj muaj zaub mov thiab lub zog huv