Formula for Image Formation

The formula for image formation describes how light rays from an object are bent (refracted) by a lens or mirror to create an image. It involves the distances of the object and image from the lens or mirror and the focal length, which is the lens's or mirror's ability to converge or diverge light. The common formula, \( \frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i} \), relates these distances, showing that knowing any two allows calculation of the third. This helps us understand where the image appears and how clear or magnified it will be.