Post-UTME Physics 2015 Objective — Question 3
Question 3 of 20 from the Post-UTME Screening (Post-UTME) Physics 2015 Objective paper, with the correct answer and a full explanation.
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A note has a frequency of 128Hz. What is the frequency of a note two octaves higher?
- A. 130Hz
- B. 256Hz
- C. 512HzCorrect
- D. 64Hz
Explanation
Each octave doubles the frequency. Two octaves higher = 128 x 2 x 2 = 512Hz.
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