focal length of lens=?
Answers
Answered by
5
Answer:
The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light.
Answered by
2
Answer:
The focal length of a lens is determined when the lens is focused at infinity. Lens focal length tells us the angle of view—how much of the scene will be captured—and the magnification—how large individual elements will be. The longer the focal length, the narrower the angle of view and the higher the magnification
Similar questions
Geography,
1 month ago
English,
1 month ago
Social Sciences,
3 months ago
History,
3 months ago
Computer Science,
9 months ago