Physics, asked by ujjwalrajno5, 10 months ago

Name the imaginary line that joins optical centre and focus of a lens.

Answers

Answered by nandangalih

Answer:

Principal Axis: Imaginary line that passes through the centres of curvature of a lens is called Principal Focus. ... Focal Length: The distance between optical centre and principal focus is called focal length of a lens.

^_^^_^^_^

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