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106
When the direction of vibration of the particles of a medium is perpendicular to the direction of travel of a wave the wave transmitted is known as
  • A. sound wave
  • B. transverse wave
  • C. longitudinal wave
  • D. stationary wave
  • E. mechanical wave
View Answer & Discuss (1) WAEC 1990
107
A bat emits a sound wave at a speed of 1650.0ms-1 and receives the echoes 0.15s later. Calculate the distance of the bat from the reflector
  • A. 8.75m
  • B. 16.50m
  • C. 87.75m
  • D. 123.75m
  • E. 330.00m
View Answer & Discuss WAEC 1990
108
A tuning fork sounds louder when its stem is pressed against a table top than when held in air because
  • A. a larger mass of air is set vibrating by the table top
  • B. the whole table vibrates in resonance
  • C. the whole table has acquired a larger frequency
  • D. the fork and table have the same frequency
  • E. the amplitude of the vibrating fork is increased.
View Answer & Discuss (7) WAEC 1990
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109
Which of the following is/are characteristics of sound? I Pitch II. Loudness III. Quality IV Noise
  • A. I only
  • B. II only
  • C. I and II only
  • D. l, II and III only
  • E. I, II, III and IV
View Answer & Discuss WAEC 1990
110
The diagram above represents part of a wave motion in air. If the wave travels with a speed of 300ms-1calculate the frequency of the wave.
  • A. 360Hz
  • B. 300Hz
  • C. 250Hz
  • D. 150Hz
  • E. 100Hz
View Answer & Discuss (8) WAEC 1990
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