With the aid diagram describe the three ways in which a human can be compared to photographic camera ?
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Apr 3
1. Lens: Just like a camera has a lens that focuses light onto the film or sensor, humans have lenses in their eyes that focus light onto the retina. Both the camera lens and the human eye can adjust their focus to see objects at different distances.
2. Film or Sensor: In a camera, the film or sensor captures the image that is focused by the lens. Similarly, in humans, the retina in the eye captures the image that is focused by the lens. The retina then sends signals to the brain to process the image.
3. Shutter: A camera has a shutter that opens and closes to control the amount of light that reaches the film or sensor. In humans, the pupil in the eye acts like a shutter, dilating or constricting to control the amount of light that enters the eye. This helps to regulate the amount of light that reaches the retina and allows us to see in different lighting conditions.