JAYDARI
MOCK
Xatolik haqida xabar berish
Kirish
Matematika
Fizika
SAT
Tarix
Innova to'plami
OPTIKA
129. Linza formulasi
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1.
Yig‘uvchi linzadan buyumgacha bo‘lgan masofa 1 m, tasvirdan linzagacha 25 cm. Linzaning fokus masofasi necha cm?
A)
20
B)
15
C)
12,5
D)
33
E)
TJY
Javobni tekshirish
Oldingi
Keyingi
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