Formation of Images in a Concave Mirror

 

What Image is Formed in a Concave Mirror When the Reflected Ray Intersect?


If the image is formed by intersection of rays after reflection, obviously it must have been reflected from a curved mirror.


Such images formed by the concave mirror will have the following properties. 


  • It must be real. (that is, it can be focused on a screen)
  • It must be inverted. 
  • Depending on the position of the object with respect to the center of curvature of the mirror and the principal focus, it may be larger in size than the object or smaller than it. 
  • If the object is further from the center of curvature, the image will be smaller than the object in size.
  •  If the object is between the center of curvature and the principal focus, the image will be bigger than the object.
  •  The object is further than the center of curvature of the mirror, the image is between the center of curvature and the principal focus.
  •                                                                                               

Object further than C 

The object is between the center of curvature and the principal focus of the mirror, the image is further from the mirror beyond the center of curvature and inverted


Object between C and F


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