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1031
A steam trap is a component of apparatus used in determining the specific latent heat of vaporization of steam. In the steady state, the steam trap
  • A. stores the steam for future use
  • B. prevents the steam from escaping
  • C. ensures that only dry steam gets into the calorimeter
  • D. allows condensed steam to go into the calorimeter
  • E. determines the quantity of steam used
View Answer & Discuss (3) WAEC 1994
1032
A hygrometer is an instrument used to measure
  • A. Dew point
  • B. Temperature
  • C. Relative density
  • D. Relative humidity
  • E. Vapour pressure
View Answer & Discuss WAEC 1994
1033
The image of an object placed at the center of the curvature of a concave mirror is
  • A. Inverted and magnified
  • B. at the principal focus
  • C. real and diminshed
  • D. Erect and virtual
  • E. at the center of the curvature
View Answer & Discuss (2) WAEC 1994
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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1034
A simple magnifying glass is used to view an object. At what distance from the lens must the object be placed so that an image 5 times the size of the object is produced 20cm from the lens?
  • A. 2cm
  • B. 4cm
  • C. 15cm
  • D. 25cm
  • E. 100cm
View Answer & Discuss (8) WAEC 1994
1035
The inability of the eye to focus near objects is known as
  • A. Long sight
  • B. Astigmatism
  • C. Presbyopia
  • D. Glaucoma
  • E. Short sight
View Answer & Discuss (3) WAEC 1994
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