Want this question answered?
singing loudly
In a plane mirror, the radius of curvature is infinitly long, so the focus will be at infinity. Another way to say it is that a plane mirror has no curvature, and as curvature becomes increasingly small, focal length becomes increasingly long. At a curvature of zero, focal length becomes infinite. Focal length(f) is given by f=R/2 where R is radius of curvature.. Once again, it's infinity! See answer to your question on radius of curvature. Plug infinity (radius of curvature) into your mirror equation to get the focal length, which will also be infinite. A flat mirror does not focus incoming parallel beams. That's because if you say its at infinity it means it does exist in a finite distance, that is instead of saying it does exist its taken at infinite distance for only theoretical importance and not for practical observance. Focal length is half of radius of curvature of the mirror. So bigger the circle gets the more its radius will be. So in the same way as the curvature of the sphere gets less and less its focal length increases, so when it becomes totally flat the focal length will become infinite so it means it has no existence but it has only theoretical importance. It same as taking the formation of image of an object at principal focus to be at infinite distance rather than saying it does not form ( that is both mean the same). hope my answer is satisfactory
It means that if you combine two or more lenses (one after the other), the effect (for many purposes) would be similar to a single lens that has such-and-such properties.
What do you mean? We live, breathe, are active - and see - in a three-dimensional world.
A plane doesn't move "at 250 miles"; probably you mean "miles per hour". Convert that to meter/second, then multiply the mass with the speed.
Focal/film plane symbol on a 35mm camera It marks the exact location of the film in relation to the body of the SLR camera if one needs exact focal lengths.
Focal = Word
singing loudly
Nothing
'The word'
itmean
Pharos was not Arabic ("Egyptian") for "lighthouse." Pharos was the island the world's first lighthouse, the Pharos of Alexandria, was built on. It was called that because of the island. However, derivatives of the word "Pharos" mean "lighthouse" in at least six languages, including Portugese, Spanish, French, Romanian, Italian, and Albanian. "Pharos" still does not mean "lighthouse" in Arabic.
A circle divided horizontally is the symbol for the Focal Plane of a camera, the actual point of focus. It is sometimes stamped on the back of a camera body in the appropriate space. The ( Focal plane indicator) is not something akin to a compass or speedometer- with movable parts. it is a reference mark. a Circle with a central Vertical Line- often used on Maps, generally means Latitude or observed latitude. Do not confuse with degrees. That"s my take.
i think you mean FOCAL LENGTH.
Focal firm is the one who initiates international business transactions. They design conceives and offer goods that is intended for consumption.
Lighthouse or (metaphorically) guiding light
I'm assuming you mean Lighthouse.... and that would be Olivine.