Question Detail
Question
What is the total power of a lens system consisting of a +0.5 diopter lens mounted in front of a +2.0 diopter lens, assuming the lenses are in contact?
Correct Answer
Option D is the correct answer.
Detailed Explanation
For lenses placed in contact, their powers simply add up. So, P_total = P1 + P2 = 0.5 D + 2.0 D = 2.5 D.
Hint
Recall the rule for combining the powers of lenses when they are placed in contact.