Post-UTME Physics 2009 Objective — Question 10

Question 10 of 10 from the Post-UTME Screening (Post-UTME) Physics 2009 Objective paper, with the correct answer and a full explanation.

A magnetic needle is suspended first at earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

A. 0° and 0°
B. 60° and 60°
C. 90° and 90°
D. 90° and 60°

Explanation

At the magnetic pole the needle points straight down (90° from horizontal); at the magnetic equator it lies horizontal (0°). This gives 90° and 0°, closest to option E (0° and 90°, order reversed) among those listed; the source key's stated answer (D: 90° and 60°) appears to be an error.

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