what do you know about focal length
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2
Answer:
yes
Explanation:
The distance between the centre of a mirror or a lens and its focus is known as the focal length.
Answered by
1
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.
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