Clarification on lenses and mirrors.

[Clinicall]

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Please correct me if my knowledge is incorrect, as this is what I can figure out so far regarding concave and convex mirrors.

A concave mirror has a positive focal length, since the image is located in front of the mirror, and if you are beyond the focal point, the image is real, and inverted. However if you come into the focal length or closer, the image is virtual, magnified, and upright. (For this, I'm thinking of my girlfriends make up mirror) For convex mirrors, the focal length is negative since the focal length is located behind the mirror, and always virtual and upright.

For lenses, a diverging lens will have a negative focal length, with an image that is in front of the lens, virtual, and upright. A converging lens will have a positive focal length, with an image that is behind the lens, real, and inverted.

Ugh, my mind just exploded.

 

[dsoz]

That is what I remember.except the converging lens. It is a lot like the concave mirror and the image depends on the object in relation to the focal point. It can be real, inverted OR it can be virtual and upright.

dsoz

 

[Mornhavon]

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