When we walk into a darkened cinema theatre after being in strong sunlight, we can’t see much well at first. However, our vision improves quickly. Because the amount of light entering the eye outside the movie theatre is high, the iris ensures that the pupil is tiny. When we enter the movie, though, the pupil widens, allowing more light to enter and make everything visible.
What happens to the eye when you enter a darkened cinema hall from bright sunshine? Give reason for your answer.
What happens to the eye when you enter a darkened cinema hall from bright sunshine? Give reason for your answer.