Find the power of a convex lens which forms a real and inverted image of magnification -1 of an object placed at a distance of 20cm from its optical center
Answers
Answer:
Converging Lens:
A converging lens is a clear piece of glass or plastic that is outwardly curved on each side. Light enters the lens and gets refracted, or bent. When the light leaves the lens it is directed towards the lens's focal point.
Key terms and Definitions:
There are two types of lens, diverging and converging.
Each lens has a focal length which refers to the distance of its focal point from the center of its principal axis. Converging lenses have a positive focal length while diverging lenses have a negative focal length.
The magnification of the lens tells us by how much the size of the image is enlarged or reduced relative to the object's actual size. It is given by the ratio of the image size and the object size.
Answer and Explanation:
Part (a)
The image distance
d
i
is 1.15f.
The thin lens equation is used to determine the image distance using the object distances