Question

prisms are used in binoculars collect information why they areused in binoculars

Answer 1

prism are used in binoculars just to fold optical path and also to erect the image .thaey have objective lens , appx. in line with eyepieces.

Answer 2

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.