Muaj ob hom iav nkhaus (convex thiab concave). Ib daim iav uas tawm sab nraud yog hu ua daim iav convex. Convex mirrors qhia tej yam yog txoj hauv kev thiab feem ntau me me. Daim iav uas ua rau sab hauv yog hu ua daim iav concave.
Yuav ua li cas koj thiaj paub tias daim iav yog concave los yog convex?
Yeej, qhov cuam tshuam ntawm daim iav convex bulges sab nraud thaum concave daim iav bulges inwards. Qhov sib txawv loj yog cov duab uas tsim hauv ob daim iav no. Hauv lwm lo lus, cov duab ploj zuj zus hauv daim iav convex thaum cov duab loj hauv daim iav concave.
Cov piv txwv ntawm daim iav concave yog dab tsi?
Cov piv txwv tshwm sim feem ntau ntawm cov iav tsom iav yog daim iav tsom iav thiab pleev iav. Raws li paub zoo, cov iav no nthuav dav cov khoom uas muab tso ze rau lawv. Cov piv txwv feem ntau tshwm sim ntawm daim iav convex yog cov neeg caij tsheb-sab tis iav ntawm lub tsheb.
daim iav concave thiab convex siv nyob qhov twg?
Daim iav concave yog muaj peev xwm tsim cov duab virtual thiab nthuav dav ntawm cov khoomthaum khaws cia ntawm qhov tsom thiab ncej ntawm daim iav. Cov cuab yeej no yog siv los ua cov iav shaving kom tau txais lub ntsej muag loj thiab pom tseeb. Daim iav convex muaj cov cuab yeej ntawm diverging ib kab hluav taws xob poob rau nws.
10 daim iav concave yog dab tsi?
Kev Siv Daim iav Concave
- Txiviav.
- iav taub hau.
- Ophthalmoscope.
- Astronomical telescopes.
- Headlights.
- hnub ci cua sov.
