Moving the object distance

So far we have shown what happens when we move the observer but we now need to show you what happens if we keep the observer stationary but move the object.

Object at more than `2F` but less than infinity

Below is the ray diagram for an object which is more than two principal focal lengths away from the convex mirror but less than infinity (infinity being a place that is so far away it can't be reached).

Convex mirror ray diagram with the object at 2F

Now we shall draw the same diagram but we will include the incident and reflected ray when the observer is at one principal focal length away.

Ray diagram when the observer is at one principal focal length away

Object at `2F`

Below is the ray diagram for an object which is at two principal focal lengths away from the convex mirror.

Ray diagram with object at two principal focal lengths

Now we shall draw the same diagram but we will include the incident and reflected ray when the observer is at one principal focal length away.

Ray diagram when the object is at 2F and observer is at F

Object between `2F` and `F`

Below is the ray diagram for an object which is between two principal focal lengths and one focal length away from the convex mirror.

Ray diagram when the object is between 2F and F

Now we shall draw the same diagram but we will include the incident and reflected ray when the observer is at one principal focal length away.

Ray diagram when the object is between 2F and F with the observer at one principal focal length

Object at `F`

Below is the ray diagram for an object which is one principal focal length away from the convex mirror.

Ray diagram when object is at F

Now we shall draw the same diagram but we will include the incident and reflected ray when the observer is at one principal focal length away.

Ray diagram when object and observer are at F

Object between the convex mirror and `F`

Below is the ray diagram for an object which is between the convex mirror and one principal focal length away.

Ray diagram when the object is between the convex mirror and F

Now we shall draw the same diagram but we will include the incident and reflected ray when the observer is at one principal focal length away.

Ray diagram when the observer is at F and the object is between F and the convex mirror