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In a concave mirror, a light ray passing through the focal point will be reflected

  • through the midpoint.
  • toward the focal point
  • parallel to the axis.

Explanation from PART66Online

Mirror ray rules are reversible: a ray that passes through the focal point of a concave mirror reflects back parallel to the principal axis. This is the exact reverse of a parallel ray, which reflects through the focal point.

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Giovane asked · 27 Nov 2015

it is parallel to axis or it is on the axis.? why not through the focal point or on the center line of the mirror?

Community Comments (1)

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PART66Online 28 Nov 2015
This should clear everything: physicsclassroom.com/mmedia/optics/rd...

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