Предмет: Физика, автор: Den4ik122004

каков механизм изменения диаметра зрачка глаза? Срочно, пожалуйста.

Ответы

Автор ответа: ykyku

Ответ:

Зрачок реагирует на изменение интенсивности света.

Объяснение:

Если освещение поступающее в глаз не меняется, то количество света пропорционально площади зрачка. При увеличении освещения зрачок реагирует сужением или расширением. Этот механизм осуществляет регуляцию количества света, поступающего на сетчатку. Пигмент под действием света меняется, а в темноте снова восстанавливается до обычного состояния.

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