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936
Water boils at a lower temperature when heated at the top of a mountain than at sea-level because at the top of the mountain the
  • A. saturation vapour pressure of water is higher than at sea-level
  • B. sun adds more heat to the water
  • C. temperature is lower than at sea- level
  • D. relative humidity of the atmosphere is lower
  • E. pressure of the atmosphere is lower
View Answer & Discuss (2) WAEC 1996
937
The main reason why rice cooks faster in a pressure cooker than in cooking pot is that
  • A. less heat escapes from the cooker
  • B. the vapour pressure in the cooker is constant
  • C. the rice is not affected by the draught over the cooker
  • D. the vapour pressure in the cooker decreases
  • E. the boiling point of water in the cooker is raised.
View Answer & Discuss (6) WAEC 1996
938
In which of the following media would sound waves travel fastest?
  • A. Kerosine
  • B. Alcohol
  • C. Water
  • D. lron
  • E. Air
View Answer & Discuss (4) WAEC 1996
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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939
A ray of light strikes a plane mirror at a glancing angle of 50o. Calculate the angle between the incident and reflected rays
  • A. 20o
  • B. 40o
  • C. 50o
  • D. 80o
  • E. 100o.
View Answer & Discuss (7) WAEC 1996
940

A boy walks away from a plane mirror at a speed of 3 ms-1 in a direction normal to the surface of the mirror. At what speed is his image approaching him?

  • A. 8 9.0ms-1
  • B. 6.0ms-1
  • C. 4.5ms-1
  • D. 1.5ms-1
  • E. 0.0ms-1
View Answer & Discuss (8) WAEC 1996
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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