A. at the principal focus
B. beyond the centre of curvature
C. between the principal focus and the centre of the curvature
D. between the principal focus and the pole
Correct Answer:
Option D – between the principal focus and the pole
A. at the principal focus
B. beyond the centre of curvature
C. between the principal focus and the centre of the curvature
D. between the principal focus and the pole
Correct Answer:
Option D – between the principal focus and the pole
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