State the differences between convex and concave mirrors. (OR)Disting

State the differences between convex and concave mirrors. (OR)Distinguish between convex and concave mirrors. (OR) Ramu observed a mirror which is used by drivers to see the vehicles behind. Srinu observed a mirror which is used by dentist to see teeth inside the mouth. What are those two mirrors and distinguish them?

Answer»

Those mirrors are :

Convex mirror	Concave mirror
1. After reflection from the mirror the light rays diverge.	1. After reflection from the mirror the light rays converge.
2. The reflecting surface curved outward.	2. The reflecting surface curved inward.
3. Radius of curvature and focal length are taken as positive, in sign conversion.	3. Radius of curvature and focal length are taken as negative, in sign conversion.
4. It’s magnification is positive only.	4. It’s magnification may be both positive and negative.
5. Magnification of convex mirror is in between zero and one.	5. Magnification value of concave mirror having all values.
6. The image formed due to convex mirror is always virtual.	6. The image formed due to concave mirror is generally real. But when an object placed between vertex and focus it is virtual.
7. The image formed due to convex mirror is always diminished.	7. The image formed due to concave mirror is diminished or magnified or same size based on position of object.
8. The image due to convex mirror is always erect.	8. Generally the image is inverted except when the object is placed between P and F.