Question

explain why we cannot see our surroundings clearly when we enter a darkened cinema hall from bright sunshine but our vision improve after some time

Answer 1

because when we are in sunlight are pupil is opened little as we need little light to see things around and when we enter a dark cinema hall our pupil takes time to enlarge and does not get sufficient light

Answer 2

because when we see the bright light the pupil contracts and then, when we go to the darkened cinema hall the eyes takes time to adjust with that dim surrounding in which our pupil is forced to expand which gives us a clear vision...