If you are told an image has been made by a single optic (either alens or a mirr

Question

If you are told an image has been made by a single optic (either alens or a mirror) that is converging, which of thefollowing must be true? Choose all that apply. The image isreal.
The image isvirtual.
The image has a positiveimage distance.
The image has a negativeimage distance.
The image isinverted.
The image isupright.
The optic has a positivefocal length.
The optic has a negativefocal length.
If the optic is a lens, it isconvex.
If the optic is a lens, it isconcave.
If the optic is a mirror, itis convex.
If the optic is a mirror, itis concave. I was unable to number thembecause of how I copied and pasted them, so take the liberty of doso. Thanks! The image isreal.
The image isvirtual.
The image has a positiveimage distance.
The image has a negativeimage distance.
The image isinverted.
The image isupright.
The optic has a positivefocal length.
The optic has a negativefocal length.
If the optic is a lens, it isconvex.
If the optic is a lens, it isconcave.
If the optic is a mirror, itis convex.
If the optic is a mirror, itis concave. The image isreal.
The image isvirtual.
The image has a positiveimage distance.
The image has a negativeimage distance.
The image isinverted.
The image isupright.
The optic has a positivefocal length.
The optic has a negativefocal length.
If the optic is a lens, it isconvex.
If the optic is a lens, it isconcave.
If the optic is a mirror, itis convex.
If the optic is a mirror, itis concave. The image isreal.
The image isvirtual.
The image has a positiveimage distance.
The image has a negativeimage distance.
The image isinverted.
The image isupright.
The optic has a positivefocal length.
The optic has a negativefocal length.
If the optic is a lens, it isconvex.
If the optic is a lens, it isconcave.
If the optic is a mirror, itis convex.
If the optic is a mirror, itis concave. I was unable to number thembecause of how I copied and pasted them, so take the liberty of doso. Thanks!

Explanation / Answer

The optic has positive focal length. If it is a lens it is convex. If it is a mirror it is concave. (For instance a camera lens (convex) forms a real invertedimage on a film - or you could take the same lens and use it as a simple magnifier to form a virtual erectimage.)

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