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PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoGeneral rules for making ray diagrams
When an object is placed in front of a lens, the object's light rays strike the lens. The position, size, and nature of the formed image can only be understood if certain basic rules are followed.
Rule-1:
When a ray of light strikes the convex or concave lens obliquely at its optical centre, it continues to follow its path without any deviation.
![3 (7).png](https://resources.cdn.yaclass.in/6bc0d0c1-33de-4695-be17-0004233ef86d/37w400.png)
Rule-2:
When rays parallel to the principal axis strikes a convex or concave lens, the refracted rays are converged to (convex lens) or appear to diverge from (concave lens) the principal focus.
![2 (8).png](https://resources.cdn.yaclass.in/13ed0865-f9ef-4fca-9070-3409583ceb8f/28w400.png)
Rule-3:
When a ray passing through (convex lens) or directed towards (concave lens), the principal focus strikes a convex or concave lens, the refracted ray will be parallel to the principal axis.