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PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoRules for the construction of image by a Concave mirror:
We need to know the following rules to find the position and nature of the image formed by a spherical mirror.
Rule 1:
A ray passing through the centre of curvature is reflected along its path.
![9 (7).png](https://resources.cdn.yaclass.in/2488108f-2b1f-4fe6-b355-ca3bc6e0a39c/97w400.png)
A ray passing through the centre of curvature
Rule 2:
A ray parallel to the principal axis passes through or appears to be coming from the principal focus after reflection.
![16 (4).png](https://resources.cdn.yaclass.in/88c4190d-9c74-4679-906e-55268c852eea/164w400.png)
Ray parallel to the principal axis
Rule 3:
A ray passing through the focus gets reflected and travels parallel to the principal axis.
![10 (8).png](https://resources.cdn.yaclass.in/5d9e838a-c0bf-48aa-9219-87085acc76e0/108w400.png)
Ray travelling through the principal focus
Rule 4:
A ray incident at the pole of the mirror gets reflected along a path such that the angle of incidence is equal to the angle of reflection.
![8 (6).png](https://resources.cdn.yaclass.in/a23a7fc4-ad32-42b2-846f-086ee269a888/86w400.png)
The angle of incidence is equal to the angle of reflection