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Physics 1981 JAMB Past Questions

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1

The ice and steam points of mercury-in-glass thermometer of centigrade scale and of uniform bore correspond respectively to 3cm and 19cm lengths of the mercury thread when the length is 12cm, the temperature is

  • A. 32oC
  • B. 48oC
  • C. 56oC
  • D. 65oC
  • E. 75oC
View Answer & Discuss (10) JAMB 1981
2

A vapour is said to be saturated when?

  • A. more molecules return to the liquid than leave it
  • B. a dynamic equilibrium exists between the liquid molecules and the vapour molecules at a given temperature
  • C. the vapour pressure is atmospheric
  • D. the temperature of the vapour varies
  • E. all molecules are moving with the same speed
View Answer & Discuss (3) JAMB 1981
3
The latent heat of fusion of a substance is the heat required to
  • A. raise the temperature of unit mass of the substance by 1 oC
  • B. maintain unit mass of the substance at constant temperature
  • C. change unit mass of substance from solid to liquid at constant temperature
  • D. change unit mass of liquid to vapour at constant temperature
  • E. raise the temperature of unit mass by 100oC
View Answer & Discuss (4) JAMB 1981
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4
The following types of waves are transverse EXCEPT
  • A. light waves
  • B. radio waves
  • C. sound waves
  • D. surface waves on water
  • E. X-rays
View Answer & Discuss (8) JAMB 1981
5

The principle of transmissibility of pressure in a fluid at rest in all directions is known as

  • A. Archimede's principle
  • B. Flotation Principle
  • C. Newton's lwa
  • D. Pascal's law
  • E. Boyle's law
View Answer & Discuss (7) JAMB 1981
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