Single Answer MCQ
Q-00106563
Which statement about the principal axis of a lens is true?
1
It passes through the focal point only
2
It is a curved line
3
It passes through both centers of curvature
4
It is always horizontal
Answer and Solution
Answer
C. It passes through both centers of curvature
Solution:
The principal axis of a lens is an imaginary straight line that passes through the two centers of curvature. Therefore, the correct answer is that it passes through both centers of curvature.
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