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Q: Reflected ray passes through principal focus when incident ray:
  • A. is passing through C of convex mirror
  • B. is incident at the pole of plane mirror
  • C. is parallel to principal axis of convex mirror
  • D. is parallel to principal axis of concave mirror
Correct Answer: Option D - Reflected ray passes through principal focus when incident ray is parallel, to principal axis of concave mirror.
D. Reflected ray passes through principal focus when incident ray is parallel, to principal axis of concave mirror.

Explanations:

Reflected ray passes through principal focus when incident ray is parallel, to principal axis of concave mirror.