Предмет: Физика, автор: xxztzxz

на расстоянии 20 см от тонкой линзы с оптической силой 4 дптр поместили предмет. На каком расстоянии от линзы (в см) сформируется изображение предмета.​

Ответы

Автор ответа: VorTex5535
0
Ответ:
D=1/F
F=1/D=1/4=0,25 м= 25 см
1/F=1/d+1/f, где (d расстояние от предмета до Линзы, f - от линзы до изображения)
1/25=1/f+1/20
1/f=1/25-1/20
1/f= 1/100
f=100см
Объяснение:

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