Question

At what distance is an image always located—at do, di, or f?

a) At the object distance (do).

b) At the image distance (di).

c) At the focal point (f).

d) The distance varies for different lenses.

Answer 1

The image is located at either the object distance (do) or the image distance (di), depending on the type of lens or mirror being used. In the special case of a lens or mirror with a focal length (f), the image will be located at the focal point (f).

Step-by-step explanation:

The image is always located at either the object distance (do) or the image distance (di), depending on the type of lens or mirror being used.

In the case of a converging lens or concave mirror, the image is located at the image distance (di). For a diverging lens or convex mirror, the image is located at the object distance (do).

In the special case of a lens or mirror with a focal length (f), the image will be located at the focal point (f).

In summary, the distance at which an image is located depends on the type of lens or mirror, and it can be at do, di, or f.