what do u mean by convex and concave mirror and lenses
Answers
Explanation:
Concave Mirror
If a hollow sphere is cut into parts and the outer surface of the cut part is painted, then it becomes a mirror with its inner surface as the reflecting surface. This type of mirror is known as a concave mirror.
Characteristics of Concave Mirrors
Light converges at a point when it strikes and reflects back from the reflecting surface of the concave mirror. Hence, it is also known as a converging mirror.
When the concave mirror is placed very close to the object, a magnified and virtual image is obtained.
However, if we increase the distance between the object and the mirror then the size of the image reduces and a real image is formed.
The image formed by the concave mirror can be small or large or can be real or virtual.
Convex Mirror
If the cut part of the hollow sphere is painted from inside, then its outer surface becomes the reflecting surface. This kind of mirror is known as a convex mirror.
Characteristics of Convex Mirrors
A convex mirror is also known as a diverging mirror as this mirror diverges light when they strike on its reflecting surface.
Virtual, erect, and diminished images are always formed with convex mirrors, irrespective of the distance between the object and the mirror.
Answer:
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