How prism are used in binoculars why prisms are used in binoculars
Answers
HELLO THERE!
Prisms are used in a binocular because it follows the phenomenon of Total Internal Reflection (TIR), due to which the full amount of light (100%) gets reflected back to the eye of the observer, there is no partial refraction. So, the vision gets more clear.
In the system in which a prism is arranged inside a binocular, there is 180° rotation of the light. Look at the diagram.
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Answer:
1. If 2 telescopes are mounted parallel to each other so that an object can be seen by both the eyes simultaneously the arrangement is called binocular.
2. The length of each tube is reduced by using a set of totally reflecting prisms.
3. They provide intense, erect image free from lateral inversion.
f0-focal length of objective
fe- focal length eyepiece
4. Through a binocular we get 2 images of the same object from different angles at same time.
5. Their super position gives the perception of depth also with length and breadth.
6. Binocular vision gives proper 3D image.
7. By using total reflecting prisms there is no loss of intensity.