Ray diagram of concave mirror when object is beyond C

With the help of rules for making a ray diagram, we can easily draw a ray diagram of a concave mirror when the object is beyond C.

Ray diagram of concave mirror when Object between C and infinity

Steps to draw to ray diagram

   1.   Draw the diagram of a concave mirror

   2.   Place the object at the given position

   3.   Follow the rules for making a ray diagram

 

Draw the diagram of a concave mirror

Place the object at the given position

 Now we place the object (↑) beyond C or between C and infinity.

Rules for making ray diagram

A light ray from point ‘A’ of the object incident parallel to the principal axis on the concave mirror.

The second light ray from the same point (A) incidents on the mirror after passing through the centre of curvature (C).

The parallel incident ray passes through the focus point (F) after reflection.

The second incident ray goes back on the same path.

Both the reflected rays meet between F and C, so the image is formed between focus(F) and centre of curvature (C).

 

 Following is the beyond c ray diagram through which we can easily understand what kind of image is formed.

Position of image	Between Focus point (F) and centre of curvature (C)
Nature of image	Real and inverted
Size of image	Smaller than object

 

For this position of object, watch the video from 34.35min

(Explained in both Hindi and English languages)

Related Topics

1. Object at infinity

2. Object at C

3. Object between C and F

4. Object between F and P

Image formation by convex mirror

1. Object between infinity and mirror

2. Object at infinity