Question

focal length paragraph​

Answer 1

Answer:Focal length, usually represented in millimeters (mm), is the basic description of a photographic lens. ... The longer the focal length, the narrower the angle of view and the higher the magnification. The shorter the focal length, the wider the angle of view and the lower the magnification.

Explanation:

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Answer 2

Heya mate here is your answer ⬇️

Explanation:

The distance between the center of lens or curved mirror and it's focus is called Focal length.

It usually represented in millimeter (mm), is a basic description in photographic lens. We can also say that, the equivalent distance in a compound lens or telescope is known as Focal length.

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 a system diverges light.

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