When an object is placed between two parallel plane mirrors, the number of images formed will be

When an object is placed between two parallel plane mirrors, an infinite number of images are formed (D). This phenomenon occurs because each mirror reflects the image formed by the other mirror, creating an endless sequence of reflected images. The process begins with the object’s initial reflection in one mirror, which is then reflected in the opposite mirror, and so on. Each reflection produces a new image that is slightly displaced from the previous one, leading to an infinite series of images that extend indefinitely along the axis between the mirrors. This scenario demonstrates the principle of multiple reflections between parallel mirrors, where the distance between consecutive images decreases progressively but continues indefinitely. The concept is a fundamental illustration of how light behaves in a reflective environment and underscores the role of geometry and optics in understanding the formation of images in parallel mirror systems.