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प्रश्न
Why the human eye is compared with camera?
उत्तर
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.
- The iris of the eye controls the size of the pupil depending on the amount of light entering it.
- The pupil is like the eyehole of a camera which allows light to come in.
- 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.
- 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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संबंधित प्रश्न
Name two types of cells in the retina of an eye which respond to light.
Fill in the following blank with suitable word:
To bring light from a near object to a focus on the retina of the eye, the convex eye-lens need to be made....................
The human eye forms the image of an object at its ______.
Differentiate between:
Yellow spot and Blind spot.
Name the following:
The focal length of the lens is altered by the contraction of which type of muscles.
State the Function:
Iris
Which of the following statements is correct regarding rods and cones in the human eye?
Which cells of the retina enable us to see coloured objects around us?
The layer in the eye where sensory cells (rods and cones) are located ______.
Name the following:
Two pigments of the sensory cells.
