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Physics 2002 WAEC Past Questions

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31
When two notes of nearly equal frequencies are sounded together, a periodic rise and fall in sound intensity can be heard. This phenomenon can be called
  • A. beats
  • B. diffraction
  • C. overtones
  • D. resonance
View Answer & Discuss (3) WAEC 2002
32
Which of the following instruments is not a wind instrument?
  • A. clarinet
  • B. saxophone
  • C. trumpet
  • D. xylophone
View Answer & Discuss (6) WAEC 2002
33
Which of the following actions will not cause an increase in the frequency of a vibrating string?
  • A. increasing the tension of the string
  • B. decrease the mass per unit lengthof the string
  • C. decrease the length of the string
  • D. increasing the cross sectional area of the string
View Answer & Discuss (1) WAEC 2002
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34
Which of the following items can be used to compare the relative magnitudes of electric charges on two bodies?
  • A. ebonite rod
  • B. gold leaf electroscope
  • C. proof plane
  • D. the electrophorus
View Answer & Discuss WAEC 2002
35
Three capacitors each of capacitance 18\(\mu F\) are connected in series. Calculate the effective capacitance of the capacitors
  • A. 54.00\(\mu F\)
  • B. 18.00\(\mu F\)
  • C. 6.00\(\mu F\)
  • D. 0.17\(\mu F\)
View Answer & Discuss (4) WAEC 2002
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