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Monday, 15 June 2026
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Physics Past Questions and Answers

Waec Physics Questions

Question 271:
WAEC 1992
The diagram above shows a waveform in which energy is transferred from A to B in a time of 2.5 x 10-3s. Calculate the frequency of the wave
SchoolNGR Classroom
  • A 2.0 x 103Hz
  • B 1.0 x 103Hz
  • C 4.0 x 10-2Hz
  • D 1.0 x 10-3Hz
  • E 5.0 x 104Hz.
View Answer & Explanation
Question 272:
WAEC 1992
Which of the following radiations have the highest frequency?
SchoolNGR Classroom
  • A Radio waves
  • B Light waves
  • C X-rays
  • D Infra-red rays
  • E Ultraviolet rays
View Answer & Explanation
Question 273:
WAEC 1992
How far from a cliff should a boy stand in order to hear the echo of his clap 0.9s later? (Speed of sound in air = 330 ms-1)
SchoolNGR Classroom
  • A 36.67m
  • B 74.25m
  • C 148.50m
  • D 297.00
  • E 366.67m
View Answer & Explanation
Question 274:
WAEC 1992
Which of the following waves are longitudinal waves? l. Ripples on the surface of water II. Waves produced by a tuning fork vibrating in air III. Light waves
IV. Waves produced by a flute
SchoolNGR Classroom
  • A I and II only
  • B I and III only
  • C II and III only
  • D II and IV only
  • E III and IV only
View Answer & Explanation
Question 275:
WAEC 1992
Which of the following statements is not true?
SchoolNGR Classroom
  • A Musical notes consist of the combination of sounds of regular frequency
  • B The combination of overtones produced by an instrument determines the quality of the sound
  • C The loudness of sound is determined by its frequency
  • D The pitch of a note depends on the frequency of vibration of the source
  • E Noise can be produced by a combination of sounds of irregular frequency
View Answer & Explanation

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