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Wednesday, 28 October 2026
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Physics Past Questions and Answers

Jamb 1979 Physics Questions

Question 6:
Which of the following types of waves cannot travel through a vacuum?
  • A Sound waves
  • B Light waves
  • C Infra-red waves
  • D X-radiation
  • E Redio waves
View Answer & Explanation
Question 7:
If in a simple pendulum experiment the length of the inextensible string is increased by a factor of four, its period is increased by a factor of
  • A 4
  • B \(\frac{\pi}{2}\)
  • C \(\frac{1}{4}\)
  • D 2\(\pi\)
  • E 2
View Answer & Explanation
Question 8:
In what range of temperature is the expansion of water anomalous?
  • A +208<sup style='font-size: smaller;'>o</sup>C to +212<sup style='font-size: smaller;'>o</sup>C
  • B -80<sup style='font-size: smaller;'>o</sup>C + -76<sup style='font-size: smaller;'>o</sup>C
  • C -4<sup style='font-size: smaller;'>o</sup>C to 0<sup style='font-size: smaller;'>o</sup>C
  • D +96<sup style='font-size: smaller;'>o</sup>C to +100<sup style='font-size: smaller;'>o</sup>C
  • E 0<sup style='font-size: smaller;'>o</sup>C to +4<sup style='font-size: smaller;'>o</sup>C
View Answer & Explanation
Question 9:
When the vapour of a substance is in equilibrium with its own liquid, it is said to be
  • A Gaseous
  • B Unsaturated
  • C Liquefied
  • D Diffused
  • E Saturated
View Answer & Explanation
Question 10:
If the wavelength of a wave travelling with a velocity of 360ms-1 is 60m, the period of the wave is
  • A 6s
  • B 3.6s
  • C 0.17s
  • D 0.61s
  • E 3s
View Answer & Explanation