Concave txhais tau tias "hollowed tawm lossis sib npaug sab hauv" thiab nco tau yooj yim vim tias cov chaw no "lub qhov tsua" nyob rau hauv. Qhov opposite yog convex lub ntsiab lus "curved los yog rounded outward." Ob lo lus tau nyob ib puag ncig rau ntau pua xyoo tab sis feem ntau sib xyaw. Cov lus qhia hauv daim iav yuav nyob ze dua li qhov tshwm sim.
Pab twg yog concave thiab convex?
Convex surfaces curves outward . Yog tias koj muaj teeb meem nco ntsoov seb lub ntsej muag yog concave los yog concave, nws yog ib qho yooj yim mus nrhiav tau. Lub concave nto nkhaus sab hauv, zoo li lub qhov ncauj ntawm lub qhov tsua.
Puas yog concave lossis convex negative?
Nyob rau hauv lej, qhov ua haujlwm concave yog qhov tsis zoo ntawm convex function.
Dab tsi yog qhov sib txawv ntawm convex thiab concave lo ntsiab muag?
Lens yuav muab faib ua ob hom loj: convex thiab concave. Lens uas tuab ntawm lawv qhov chaw tshaj li ntawm lawv cov npoo yog convex, hos cov uas tuab nyob ib ncig ntawm lawv cov npoo yog concave. Lub teeb ci dhau los ntawm lub lens convex yog tsom los ntawm lub lens ntawm ib qho taw tes ntawm sab nraud ntawm lub lens.
Puas yog tib neeg lub qhov muag concave los yog convex?
Lub lens tam sim no hauv tib neeg lub qhov muag yog convex lens. Peb tib neeg tuaj yeem pom ntau xim lossis khoom. Peb tuaj yeem pom cov khoom no vim tias lub teeb los ntawm qhov pom kev npau taws ntawm cov hluav taws xob hluav taws xob, tawm los ntawm cov khoom nkag mus rau hauv peb lub qhov muag, dhau los ntawm lub lens thiab tom qab ntawd poob rau ntawm retina hauv peb.ob lub qhov muag.
