Cov kws kho hniav siv iav dab tsi?
Cov kws kho hniav siv iav dab tsi?

Video: Cov kws kho hniav siv iav dab tsi?

Video: Cov kws kho hniav siv iav dab tsi?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Kev thov ntawm a concave iav:

A concave iav yog siv los tsim cov duab virtual, upright thiab magnified, thaum cov khoom nyob rau hauv focal point thiab ncej ntawm daim iav. Cov cuab yeej no ntawm concave iav ua rau nws muaj txiaj ntsig zoo rau cov kws kho hniav kom pom cov duab loj ntawm cov hniav thiab kab noj hniav thiab lwm yam.

Ib yam li ntawd, daim iav twg tus kws kho hniav siv thiab vim li cas?

Concave iav yog siv los ntawm kws kho hniav vim lawv sib koom iav thiab qhia txog lub teeb rau lub focal point. Tsis tas li ntawd, ntawm qhov luv luv (khoom nrug tsawg dua qhov focal ntev ntawm qhov iav ) lawv tsim cov duab loj, erect thiab virtual.

Kuj Paub, qhov ci ntsa iab ntawm tus kws kho hniav hauv pliaj yog dab tsi? A taub hau daim iav yog ib qho yooj yim kuaj cov cuab yeej, stereotypically hnav los ntawm cov kws kho mob, tab sis tsawg dua nyob rau hauv xyoo tsis ntev los no raws li lawv tau dhau los ua dog dig. A taub hau iav feem ntau yog siv rau kev kuaj pob ntseg, qhov ntswg & caj pas.

Yog li ntawd, daim iav kho hniav siv rau dab tsi?

Cov qhov ncauj daim iav muaj ntau yam ntawm siv . Peb ntawm nws cov haujlwm tseem ceeb tshaj plaws yog tso cai rau qhov tsis pom kev los ntawm qhov kws kho hniav , reflecting lub teeb rau ntawm qhov chaw xav tau, thiab thim rov qab ntawm cov ntaub so ntswg.

Lub lens twg siv rau hauv daim iav sab?

Vim tias daim duab me me, ntau daim duab tuaj yeem haum rau ntawm iav , so ib convex iav muab rau ib thaj tsam loj dua ntawm lub dav hlau iav . Qhov no yog vim li cas lawv thiaj li muaj txiaj ntsig. Lawv yog siv thaum twg a iav nrog rau qhov loj ntawm kev pom yog xav tau. Piv txwv li, tus neeg caij tsheb- sab saib tom qab iav ntawm lub tsheb yog convex.

Pom zoo: