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1651
Calculate the amount of heat required to convert 2kg of ice at 2oC to water at 0oC. [specific heat capacity of ice = 2090Jkg-1 oC-1, specific latent heat of fusion of ice = 333kJkg-1]
  • A. 666J
  • B. 8360J
  • C. 666 000J
  • D. 674 360J
View Answer & Discuss (4) JAMB 1987
1652
A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is
  • A. 60.0ms-1
  • B. 6.0ms-1
  • C. 1.5ms-1
  • D. 0.6ms-1
View Answer & Discuss (10) JAMB 1987
1653
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 & Discuss (4) JAMB 1987
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1654
Which of the following instruments has a pure tone?
  • A. guitar
  • B. vibrating strings
  • C. tuning fork
  • D. siren
View Answer & Discuss (7) JAMB 1987
1655

The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 150Hz?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
View Answer & Discuss (11) JAMB 1987
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts