Question
Sat February 12, 2011 By: Gyanesh Malhotra
 

If an Incident ray of light travels along the principal axis then what will be the angle of reflection?why?

Expert Reply
Tue February 15, 2011
Dear student,
  • Any incident ray traveling parallel to the principal axis on the way to the mirror will pass through thefocal point upon reflection.
  • Any incident ray passing through the focal point on the way to the mirror will travel parallel to the principal axis upon reflection.

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