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Q: What is the distance from the center of a mirror to a focal point called?
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The distance between a mirror and its focal point is called the?

Focal length, positive number with a concave mirror, negative for a convex mirror.


What is the distance from a lens to one of its foci called?

The distance from the center of a lens to one of its focal points is the focal length of the lens.


Why do images in a concave mirror appear inverted?

If an object's distance from the concave mirror is greater than the mirror's focal length, then the mirror image of it will be inverted. If the distance from the concave mirror is less than the focal length of the mirror, the image will not be inverted. No image will be produced if the distance from the mirror to the object is equal to the mirror's focal length.


The distance from the center of the lens to its principal focus is called the what?

Focal length


Focal length of a concave mirror?

1/object distance + 1/ image distance = 1/focal length


Which term defines the distance from the focal point to either a lens or a mirror?

focal length


The focal point of a concave mirror is 5 cm what is its center of curvature?

10 cm from the mirror.


Length of a lens is the distance from the center of the lens to its principal focus?

It is called the focal length. It is equal to 1/2 times r, and is positive on concave mirrors and negative on convex mirrors.


Would the mirror equation work for plane mirrors?

No, it will not, this is because a plane mirror has no focal point. It's rays never converge at a single point like a concave mirror, and therefore it has no focal point The mirror equation is 1/f=1/di + 1/do, where f is the focal point, di is the distance of the image from the mirror, and do is the distance of the reflected object from the mirror. Since focal point is required for the equation, it can't work. Hope this helps.


What is the relationship between object distance image distance and focal length of concave mirror?

Sum of reciprocal of object distance and reciprocal of image distance gives the reciprocal of focal length


What is the relationship between object distance image distance and focal length of a concave mirror?

Sum of reciprocal of object distance and reciprocal of image distance gives the reciprocal of focal length


The distance from lens to focal point is called?

It is called the focal length.