Ray diagram of concave mirror when the object is put at infinity | |
Position of an object (u) | At infinity |
Position of image formed (v) | At Focus (F) |
Nature of the Image | Real and Inverted |
Size of Image | Point like image (Highly Diminished) |
Condition 2:- Image formed by concave mirror when the object is beyond the center of curvature (C)
As you can see in the figure that object AB is placed at B beyond C. In addition, the image A’B’ is constructed at point B’ between C and F.
Ray diagram of concave mirror when object put beyond the center of curvature | |
Position of an object (u) | Beyond center of curvature C |
Position of image formed (v) | Between Center of curvature (C) and focus (F) |
Nature of the Image | Real and Inverted |
Size of Image | Small or Diminished |
Condition 3:- Image formed by concave mirror when the object is placed at center of curvature (C)
In the given figure you can see the object AB is placed at the center of curvature C. Equal and inverted image A’B’ is formed at C.
Ray diagram of concave mirror when object at Center of curvature C | |
Position of an object (u) | At the center of curvature C |
Position of image formed (v) | At the center of curvature C |
Nature of the Image | Real and Inverted |
Size of Image | Equal to the size of object (Same size) |
Condition 4:- Image formed by concave mirror when the object is placed between center of curvature (C) and principal focus(F)
In that given image, you can see the object is placed between the center of curvature (C) and focus (F).
Ray diagram of concave mirror when the object is put beyond C | |
Position of an object (u) | Between the center of curvature C & focus (F) |
Position of image formed (v) | Beyond the center of curvature C |
Nature of the Image | Real and Inverted |
Size of Image | Enlarged or Magnified |
Condition 5:- Image formation by concave mirror when the object is placed at principal focus(F)
In that case, object AB is placed at focus F and the image A’B’ forms at infinity.
Ray diagram of concave mirror when the object is put at principal focus F | |
Position of an object (u) | At the principal focus F |
Position of image formed (v) | At infinity |
Nature of the Image | Real and Inverted |
Size of Image | Highly Magnified |
Condition 6:- Image formation by concave mirror when the object is placed between pole P and the principal focus(F)
In that figure, the object AB is placed between the pole and focus. The image of the object is formed behind the mirror which is magnified.
Ray diagram of concave mirror when object put between the pole and focus | |
Position of an object (u) | Between pole and principal focus |
Position of image formed (v) | Behind the mirror |
Nature of the Image | Virtual and erect |
Size of Image | Magnified (enlarged) |
Read that: Ohms law
Image formation for convex mirror
Condition 1:- Image formed by convex mirror when the object is placed at infinity
Ray diagram of convex mirror when object put at infinity | |
Position of an object (u) | At infinity |
Position of image formed (v) | At focus behind the mirror |
Nature of the Image | Virtual and erect |
Size of Image | Point like (highly diminished) |
Condition 2:- Image formed by convex mirror when the object is placed between the pole P and infinity
Ray diagram of convex mirror when object put between the pole and infinity | |
Position of an object (u) | Between the pole and infinity |
Position of image formed (v) | Between pole and focus behind the mirror |
Nature of the Image | Virtual and erect |
Size of Image | Small (diminished) |
Image formation tabular data for concave mirror in a short form:-
In this table, the image formed by a concave mirror is given while placing the object in a different location.
Position of an object (u) | Position of the image (v) | Nature of the image | Size of image formed by concave |
At infinite | At Focus (F) | Real & inverted | Highly Diminished (Point Like) |
Beyond Center of curvature (C) | Between C and F | Real & inverted | Diminished (Small) |
At Center of curvature (C) | At Center of curvature (C) | Real & inverted | Same size as object |
Between C and F | Beyond C | Real & inverted | Magnified (Enlarge) |
At principal focus F | At infinity | Real & inverted | Highly Magnified |
Between Pole and Focus | Behind the mirror | Virtual and Erect | Magnified (Enlarge) |
Image formation tabular data for convex mirror in a short form:-
This table contains the details of the image formed by a convex mirror while placing the object in a different location.
Position of an object (u) | Position of the image (v) | Nature of the image | Size of image formed by concave |
At infinite | At Focus (F) behind the mirror | virtual and Erect | Highly Diminished (Point Like) |
Between Pole P and Infinity | between pole and focus behind the mirror | Virtual and Erect | Diminished (Small) |
Conclusion:-
From the point of view of the class 10th board, this topic of a spherical mirror is very important. If you know how to draw a ray diagram for concave and convex mirrors, you will be able to create an image. I hope you will understand the given notes of the image formation by concave and convex mirrors. But still, if there is any doubt related to this topic, then definitely ask in the comment box.