English, asked by negitikma8, 11 months ago

what is principal focus

Answers

Answered by aashifsafa8

2

Answer:

In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge.

Answered by mraganksharma011

2

Answer:

the principal focus is Curvature/2

Explanation:

the principal focus is Curvature/2

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