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Post-UTME Physics 2005 Objective — Question 18

Question 18 of 23 from the Post-UTME Screening (Post-UTME) Physics 2005 Objective paper, with the correct answer and a full explanation.

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Which of the following statements is not correct about the astronomical telescope under normal adjustment

  • A. The final image is at infinity
  • B. The principal foci of the objective and eye piece coincide
  • C. The final image is at principal focus of the eye pieceCorrect
  • D. The distance between the lenses is equal to the sum of their focal lengths

Explanation

Under normal adjustment, the final image forms at infinity, not at the principal focus of the eyepiece, making this the incorrect statement.

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