Physics, asked by Bharghavteja, 1 year ago

what is meant by focal plain and why and how is it useful

Answers

Answered by AA69

Definition of focal plane. : aplane that is perpendicular to the axis of a lens or mirror and passes through thefocus.

i think it is helpful in cillary muscle to increase and decrease !!

Bharghavteja: how is it useful in drawing ray diagrams

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