Final answer:
A projection of an object onto an imaginary plane is called a real image, where light rays actually converge, allowing the image to be projected onto different surfaces.
Step-by-step explanation:
The term used for a projection of an object onto an imaginary plane, which is also referred to as Right Angle Projection and represents the best view of the object, is a real image. A real image is where light rays from a single point on the object actually converge at the location of the image.
This convergence allows the image to be projected onto various mediums like a screen or film, and this phenomenon is used in various devices such as cameras and the human eye. The process of creating a real image involves the principles of ray tracing which helps in visualizing and constructing the image.
For example, using a converging lens, parallel rays not aligned with the optical axis will focus onto the focal plane, forming a real image at the point where the central ray crosses this plane.