Physics, asked by mdasifraza006, 3 months ago

the point on the principal axis of a concave lens from where are beam of incident parallel actors to diverse is called the dash of the concave lens​

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Answered by Anonymous
2

Answer:

Principal focus is a point on the principal axis of a concave lens, where parallel beam of light rays travelling parallel to principal axis, after passing through the concave lens the refracted rays diverge appear to come from one point.

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