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Physics WAEC Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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316
A radioactive nuclide of mass 6.09 has a half-life of 8 days. Calculate the time during which 5.25g of the nuclide would have decayed
  • A. 1 day
  • B. 2 days
  • C. 8 days
  • D. 24 days
  • E. 42 days.
View Answer & Discuss (13) WAEC 1995
317

A moving-coil meter with an internal resistance of 100 Ω has a full-scale deflection when a current of 10 mA flows through it. What value of resistance would convert it to read 10 V at full-scale deflection?

  • A. 20
  • B. 100
  • C. 600
  • D. 900
  • E. 1000
View Answer & Discuss (6) WAEC 1995
318
Which of the following are emitted from a radioactive substance without altering either the nucleon number or the proton number of the substance?
  • A. Protons
  • B. Neutrons
  • C. Gamma rays
  • D. Beta particles
  • E. Alpha particles
View Answer & Discuss (2) WAEC 1995
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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319
Which of the following is not a product of nuclear fission?
  • A. Alpha particle
  • B. Beta particle
  • C. Gamma ray
  • D. X-ray
  • E. Neutron
View Answer & Discuss (1) WAEC 1995
320
Which of the following cannot be explained by the molecular theory of matter?
  • A. Conduction
  • B. Radiation
  • C. Convection
  • D. Evaporation
  • E. Expansion
View Answer & Discuss (7) WAEC 1995
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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