
Lęšiai
Authored by Aušra Drevinskaitė
Physics
2nd Grade
Used 37+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuriame paveiksle pavaizduotas krintantis į lęšį spindulys nelūžta?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kurioje dėžėje yra patalpintas glaudžiamasis, o kurioje sklaidomasis lęšis?
1 – glaudžiamasis, 2 – sklaidomasis.
1 ir 2 – glaudžiamieji lęšiai.
1 – sklaidomasis, 2 – glaudžiamasis.
1 ir 2 – sklaidomieji lęšiai.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nurodykite, kuris teiginys teisingas:
Nė vienas pateiktas teiginys nėra teisingas.
Sklaidomuoju lęšiu galima gauti ir menamąjį, ir tikrąjį atvaizdą.
Jei lygiagrečių spindulių pluoštas praeina sklaidomąjį lęšį, tai jie susikerta židinyje.
Glaudžiamuoju lęšiu negalima gauti menamojo atvaizdo.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokiu optiniu prietaisu galima gauti padidintą tikrąjį daikto atvaizdą?
Glaudžiamuoju lęšiu.
Plokščiuoju veidrodžiu.
Sklaidomuoju lęšiu.
Stikline plokštele.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuris lęšis nėra glaudžiamasis?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri iš tiesių, einančių per lęšį, yra pagrindinė optinė ašis?
1
2
3
Visos
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kur turi būti daiktas, kad glaudžiamuoju lęšiu gautume menamąjį atvaizdą?
d<F
d=F
2F<d<F
d=2F
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