Physics, asked by satuu1, 1 year ago

definition of focus?

Answers

Answered by Anonymous

principal focus is the point in which the light rays from infinity ,that is parallel to the principal axis appear to diverge from a point or converge at a point.

Answered by crystaldesuja

the main or central point of something, especially of attention or interest = focus

satuu1: today was my science exam and i missed it

satuu1: thanks crystal

crystaldesuja: ur welcome

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