Tamil Nadu Board of Secondary EducationSSLC (English Medium) (5 to 8) Class 8

Why the human eye is compared with camera? - Science

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Answer in Brief

Why the human eye is compared with camera?

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Solution

The human eye can be compared to a camera as both functions by gathering, focusing, and transmitting the light through the lens for creating an image of an object.

  1. The iris of the eye controls the size of the pupil depending on the amount of light entering it.
  2. The pupil is like the eyehole of a camera which allows light to come in.
  3. Lens: It is a transparent, biconvex, and adjustable part of an eye, made up of protein. The lens with the help of the cornea refracts light focused on the retina, therefore creating images on it.
  4. The retina consists of photoreceptors and converts light rays into impulses to be sent to the brain. It is light-sensitive.
    The retina is compared to the film in a camera.
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Chapter 18: Organisation of Life - Exercises [Page 216]

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Tamil Nadu Board Samacheer Kalvi Class 8th Science Answers Guide
Chapter 18 Organisation of Life
Exercises | Q VI. 3. | Page 216

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