JAYDARI
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Xatolik haqida xabar berish
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Matematika
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Innova to'plami
OPTIKA
127. Linzalar
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1.
Rasmda yorug‘lik nurlarining linzadan o‘tishi tasvirlangan. OOʹ-linzaning bosh optik o‘qi. Rasmda belgilangan nuqtalardan qaysi biri linzaning fokusini ko‘rsatadi?
A)
1
B)
2
C)
3
D)
5
E)
4
Javobni tekshirish
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