Question

A person walking in a dark corridor enters into a brightly lit room:; (a) State the effect on the pupil of the eye.; (b) How does this affect the amount of light entering the eye ?

Answer 1

Answer:

the light enter into eyes suddenly coming from dark and pupil gets shock so for 10 to 15 mins we can't see clear for ex. coming from picture Hall into Sun light

Answer 2

(a) When reaching a brightly lit area from a dark hallway, a person may feel shine in the eyes.

(b) When the eyes 'pupil contracts, less light penetrates the glare and eyes the slowly decreases.

Explanation:

(a) When reaching a brightly lit area from a dark hallway, a person may feel shine in the eyes.

• It's because the pupil of both the eyes is wide if the person walks in a dark hallway, and when the person reaches a brightly lit area, a wide amount of light reaches the eyes; therefore, she or he feels shine in the eyes.
• It takes the pupil some time to adapt to the intensity of the ambient light, and they contract slowly.  

(b) When the eyes 'pupil contracts, less light penetrates the glare and eyes the slowly decreases.

• That allows the person to see more clearly the surroundings.

To know more about pupil of the eye, visit:

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