Question Detail
Question
One of the key rays used in ray diagrams for spherical mirrors is described as: 'A ray parallel to the axis; after reflection it passes through the focal point.' Which rule number is this in the document?
Correct Answer
Option A is the correct answer.
Detailed Explanation
Page 23 lists '1. A ray parallel to the axis; after reflection it passes through the focal point.' as the first key ray.
Hint
Check the numbered list of key rays on page 23.