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496
The ratio of tensile stress to tensile strain is known as
  • A. Modulus of integrity
  • B. Modulus of elasticity
  • C. Shear modulus
  • D. Bulk modulus
  • E. Young’s modulus
View Answer & Discuss WAEC 1997
497
Which of the following statements is not true of nuclear fission?
  • A. Mother nucleus is broken into two daughter nuclei of roughly equal parts
  • B. Neutron is normally used in bombarding heavy nucleus
  • C. Two light nuclei are made to combine to form a heavy nucleus
  • D. Very enormous energy is released
  • E. There is an apparent loss of mass
View Answer & Discuss (4) WAEC 1997
498
When a paint brush is removed from clean water, the bristles of the brush are pulled together because of
  • A. The viscosity of the surrounding air
  • B. The low density of water
  • C. Surface tension forces
  • D. The weight of the brush bristles
  • E. The mass of the brush bristles
View Answer & Discuss (2) WAEC 1997
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499

The half-life of a radioactive material is 6hrs. What quantity of 1kg of the material would decay in 24 hours?

  • A. \(\frac{15}{16}\)kg
  • B. \(\frac{1}{2}\)kg
  • C. \(\frac{1}{4}\)kg
  • D. \(\frac{1}{8}\)kg
  • E. \(\frac{1}{6}\)kg
View Answer & Discuss (7) WAEC 1997
500
The odor of a leaking gas is perceived at a distance from the source. This is made possible by the process of
  • A. Sublimation
  • B. Diffusion
  • C. Osmosis
  • D. Evaporation
  • E. Capillarity
View Answer & Discuss WAEC 1997
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