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Monday, 17 August 2026
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Physics Past Questions and Answers

Topic: Waves

Jamb Physics Questions - Waves

Question 31:
A wave of frequency 10Hz forms a stationary wave pattern in a medium where the velocity is 20cms-1. The distance between adjacent nodes is
  • A 1.0cm
  • B 1.5cm
  • C 2.0cm
  • D 5.0cm
View Answer & Explanation
Question 32:
A man clapping his hands at regular intervals observes that the echo of a clap coincides with the next clap. If the reflecting cliff is 160m away and the speed of sound is 320ms-1, what is the frequency of the clapping?
  • A 1 Hz
  • B 2Hz
  • C 4Hz
  • D 8Hz
View Answer & Explanation
Question 33:
The wavelength of ultraviolet radiation is 400nm. If the speed of light in air is 3 x 108ms-1, then the frequency of the ultraviolet radiation is
  • A 1.3 x 10<sup style='font-size: smaller;'>15</sup>Hz
  • B 7.5 x 10<sup style='font-size: smaller;'>5</sup>Hz
  • C 1.2 x 10<sup style='font-size: smaller;'>11</sup>Hz
  • D 7.5 x 10<sup style='font-size: smaller;'>14</sup>Hz
View Answer & Explanation
Question 34:
A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is
  • A 60.0ms<sup style='font-size: smaller;'>-1</sup>
  • B 6.0ms<sup style='font-size: smaller;'>-1</sup>
  • C 1.5ms<sup style='font-size: smaller;'>-1</sup>
  • D 0.6ms<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 35:
A boat at anchor is rocked by waves whose crest are 100m apart and whose velocity is 25ms-1. At what interval does the wave crest reach the boat?
  • A 2500.00s
  • B 75.00s
  • C 4.00s
  • D 0.25s
View Answer & Explanation