Question Detail
Question
What is spherical aberration, as described on page 20 of the document?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Page 20 states: 'Parallel rays striking a spherical mirror do not all converge at exactly the same place if the curvature of the mirror is large; this is called spherical aberration.'
Hint
It relates to the imperfect focusing of parallel rays by a spherical mirror.