Question

Light rays falling on the concave mirror parallel to the optical axis are reflected through ..............

• A. Centre of curvature
• B. Pole
• C. Focal point
• D. None of the above

Answer 1

The correct option is C Focal point

Any incident ray traveling parallel to the principal axis on the way to a concave mirror will pass through the focal point upon reflection. Any incident ray passing through the focal point on the way to a concave mirror will travel parallel to the principal axis upon reflection.