Question

oye my question was defination of focal length

who reported? and

why it got deleted? -_-

Answer 1

hey mate your answer is ..

distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror is called as focal length

hope its helpful pls mark me as brainliest

Answer 2

The focal of the lens is the distance between the lens and the image sensor when the subject is in focus. It is not a measure of an actual length but the calculation of an optical distance from the point where the light ray converges to form a sharp of the object to the digital sensor of the camera. The focal length of a lens is determined when the lens is focused at infinity.

What had been reported?

As it was reported and there was some mistake otherwise the moderator who has deleted it could not realize that there was no fault so, he or she deleted it.