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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1396
A certain radioisotope of \(^{235}_{92}U\) emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are
  • A. 219 and 87
  • B. 84 and 223
  • C. 223 and 87
  • D. 219 and 81
View Answer & Discuss (6) JAMB 1994
1397
If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then
  • A. no electron will be emitted
  • B. the few electrons emitted will have a maximum kinetic energy of 1eV
  • C. the few electrons emitted will have a maximum kinetic energy of 3eV
  • D. many electrons will be emitted
View Answer & Discuss JAMB 1994
1398
Which of the following quantities has the same unit as the watt?
  • A. Force x time
  • B. Force x distance
  • C. Force x acceleration
  • D. Force x velocity
View Answer & Discuss (5) JAMB 1993
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1399

The external and internal diameter of a tube are measured as (32 ± 2)mm and (21 ± 1)mm respectively. Determine the percentage error in the thickness of the tube.

  • A. 27%
  • B. 14%
  • C. 9%
  • D. 3%
View Answer & Discuss (27) JAMB 1993
1400
Two forces of magnitudes 7N and 3N act at right angles to each other. The angle \(\theta\) between the resultant and the 7N force is given by
  • A. cos\(\theta\) = \(\frac{3}{7}\)
  • B. sin\(\theta\) = \(\frac{3}{7}\)
  • C. tan\(\theta\) = \(\frac{3}{7}\)
  • D. cot\(\theta\) = \(\frac{3}{7}\)
View Answer & Discuss (5) JAMB 1993
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now