Question

MCQ : A ray of light incident on a lens parallel to its principal axis, after refraction passes through or appears to come from

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Answer

Question

A ray of light incident on a lens parallel to its principal axis, after refraction passes through or appears to come from

  1. its second focus
  2. its first focus
  3. its optical centre
  4. the centre of curvature of its second surface.

Answer

its second focus

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