Вопрос школьника по предмету Физика
На экране возникает увеличенное в 2 раза изображение предмета,расположенного на расстоянии 1 м от линзы.Какова оптическая сила линзы?
Ответ учителя по предмету Физика
Ответ:
1.5 дптр
Объяснение:
d=1 м Г=2 D=?
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Г=f/d=2
f=2*d
D=1/F=1/d+1/f=1/d+1/(2*d)=3/(2*d)=1.5 дптр
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