Image Formation by a Concave Mirror
Category : 10th Class
In this part we will discuss about the nature, position, and relative size of the mage formed of the various position of the objects. The image may be re a or real or virtual. We will try to find out, with the help of a mirror, the position of the objects. The nature of image formed depends on the position o the object the position carnage is obtained by intersection of at least two of the reflected rays.
When the Object is at Infinity
When the object is at infinity, in the case of a concave mirror, the image formed has the following properties:
When the Object is Infinity
When the Object is Beyond C
When the object is beyond C, the image formed has following properties:
When the Object is placed beyond C
When the Object is at C
When the object is beyond C, the image formed has following properties:
When the Objects is Placed at the Centre of Curvature
When the Object is between Centre of Curvature and Focus
When the object is between C and F, the image formed has following properties:
When the Object is Between C and F
When the Object is at Focus
When the object is at F, the image formed has following properties:
When the Objects is at the Focus
When the Object is between Focus and Pole
When the object is between F and P, the image formed has following properties:
When the objects is between the pole and Focus
The summary of the above observation is given in the Table Below:
SL. No. | Position of the Object | Position of the Image | Nature of Image | Size of Image |
1. 2. 3. 4. 5. 6. |
At Infinity Beyond C At C Between C and F At F Between F and P |
At the Focus F Between C and F At C Beyond C At Infinity Behind the Mirror |
Real and Inverted Real and Inverted Real and Inverted Real and Inverted Real and Inverted Virtual and Erect |
Highly Diminished Smaller in Size Equal in Size Larger in size Highly Enlarged Larger in Size |
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