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Izindaba Zebhizinisi

  • Umthetho wokuthwebula i-convex lens

    Umthetho wokuthwebula i-convex lens

    Kuma-optics, isithombe esakhiwe ukuhlangana kokukhanya kwangempela sibizwa ngokuthi isithombe sangempela;kungenjalo, kubizwa ngokuthi isithombe esibonakalayo.Othisha abanolwazi lwefiziksi bavame ukusho indlela enjalo yokuhlukanisa lapho besho umehluko phakathi kwesithombe sangempela nesithombe esibonakalayo: “Isithombe sangempela sithi...
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  • Ungalungisa kanjani ukuvuleka kwe-lens?

    Ungalungisa kanjani ukuvuleka kwe-lens?

    Lapho ulungisa iris, iris ihlale isendaweni yokuvula enkudlwana.Kuphela uma inkinobho yokuvala icindezelwa ukuze kukhululwe isivalo, indawo yokuvula ifinyela ngokuzenzakalelayo ku-f-factor ebekiwe, bese imbobo ibuyela endaweni enkulu ngemva kokuchayeka.Iyini ilensi?Ilensi ineminwe emibili...
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