Question

7. Explain why, we cannot see our surroundings nearly when we enter a darkened cinema hall from bright sunshine but our vision improves after sometime.

Answer 1

It happens because when we stay insunlight, the pupil becomes small to avoid excessive light entering into theeyes. When we come in a darkened cinema hall, the pupil stays small because eyes cannot adjust the environment directly. ... That's why we can't see properly in darkened hall aftercoming from sunshine.

Answer 2

Explanation:

In bright sunshine the size of the pupil of the eye is very small so when we enter a darkened cinema hall from bright sunshine very little amount of light enters the eye. The vision improves at some time later because the pupil dilates and more amount of light enters the eye easily