A Person Walking in a Dark Corridor Enters into a Brightly Lit Room: State the Effect on the Pupil of the Eye. - Science

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A person walking in a dark corridor enters into a brightly lit room: 

 State the effect on the pupil of the eye. 

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Solution

 A person can feel glare in the eyes when entering a brightly lit room from a dark corridor. This is because the pupil of the eyes are large when the person is walking in a dark corridor, and as the person enters a brightly lit room, a large amount of light enters the eyes; hence, he or she feels glare in the eyes. It takes some time for the pupil to get adjusted to the intensity of the surrounding light, and gradually, they contract.

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Chapter 6: The Human Eyes And The Colorful World - Exercise 1 [Page 271]

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Lakhmir Singh Class 10 Physics (Science)
Chapter 6 The Human Eyes And The Colorful World
Exercise 1 | Q 33.1 | Page 271

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