blur circle sentence in Hindi

Examples

1. The blur circle, of diameter " C ", in the focused object plane at distance " S " 1, is an unfocused virtual image of the object at distance " S " 2 as shown in the diagram.
2. To calculate the diameter of the circle of confusion in the image plane for an out-of-focus subject, one method is to first calculate the diameter of the blur circle in a virtual image in the object plane, which is simply done using similar triangles, and then multiply by the magnification of the system, which is calculated with the help of the lens equation.