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JAMB Physics 2012 Question 33

Question 33

Light and Reflection

After reflection from the concave mirror, rays of light from the sun converges

  1. A.at the radius of curvature
  2. B.at the focus
  3. C.beyond the radius of curvature
  4. D.between the focus and radius of curvature.
Show the answer and explanation

Answer: B (at the focus)

Explanation

Rays from the very distant sun arrive parallel, and a concave mirror brings parallel rays together at its principal focus.