Yuav suav thiab suav cov cell li cas nyob rau hauv lub tshuab ntsuas qhov pom?
"Tus naj npawb ntawm cov hlwb yog inversely proportional rau lub square ntawm magnification" pom nyob rau hauv lub microscope teb ntawm saib.
Hauv lwm lo lus, qhov siab dua qhov kev nthuav dav ntawm lub tshuab tsom, qhov me me ntawm qhov pom, lub hlwb loj dua, thiab cov hlwb me dua (inversely proportional).
Piv txwv li: Piv txwv tias peb nce lub hom phiaj lens ntawm 4X mus rau 40X, thiab qhov magnification yog 10 npaug ntawm qhov qub, yog li daim teb ntawm kev pom dhau los ua 1/100 ntawm qhov qub (inverse square ratio), yog li cov xov tooj ntawm tes kuj dhau los ua 1/ 100 ntawm qhov tseem ceeb (piv txwv tias cov hlwb yog cov ntaub ntawv faib khoom sib xws).
Piv txwv li 1: 64 cov kab mob sib cais tsis sib xws tau pom nrog 100X lub tshuab tsom, pes tsawg lub hlwb tuaj yeem pom nrog 400X lub tshuab tsom?
Answer: 100x->400x, zoom 4 x. 4 npaug ntawm qhov ntev thiab 16 npaug ntawm cheeb tsam. Tus lej yog 64 * 1 / 16=4
Piv txwv 2: Yog tias 500 lub hlwb sib npaug tuaj yeem pom nrog lub hom phiaj 4X, pes tsawg lub hlwb tuaj yeem pom yog tias lub hom phiaj lens hloov nrog 40X microscope?
Answer: 4x->40 x, zoom 10x. 10 npaug ntawm qhov ntev thiab 100 npaug ntawm cheeb tsam. Tus lej yog 500 * 1 / 100=5
Piv txwv 3: 64 kab mob tuaj yeem pom nyob rau hauv 50X microscope, pes tsawg tus tuaj yeem pom ntawm 100X?
Answer: 50x->100x, magnified los ntawm 2 zaug. Ob zaug qhov ntev thiab plaub zaug ntawm cheeb tsam. Tus lej yog 64 * 1 / 4=16
