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2246

A nitrogen nucleus bombarded with an alpha particle produces an oxygen nucleus and a proton. The nuclear reaction for this process is \(^4_2H + ^{14}_2N \to ^{17}_{8}O + ^1_1H + Q\). Which of the following statements about the reaction is not correct?

  • A. the bombardment results into a nucleus with greater proton number
  • B. it is an induced nuclear reaction
  • C. it is a natural radioactive decay
  • D. the sum of the final nucleon numbers
View Answer & Discuss (9) WAEC 2001
2247

In a nuclear reactor, electricity can be generated through the following processes. Arrange the processes in the correct order. i. The steam is used to drive turbines. ii. The heat energy released is removed by passing water through the reactor. iii. The turbines in turn generate electricity. iv. The water then passes through some form of heat exchanger to produce steam

  • A. ii, iv, i and iii
  • B. i, ii, iii and iv
  • C. iii, i, iv and ii
  • D. iv, i, iii and ii
View Answer & Discuss WAEC 2000
2248

Electrons passing through crystals are diffracted because they

  • A. are repelled by the atoms in the crystal
  • B. are attracted by the atoms in the crystals
  • C. possess wave properties
  • D. are particles
View Answer & Discuss WAEC 2001
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2249

The duality of matter implies that matter

  • A. exists as a particle of dual composition
  • B. has momentum and energy
  • C. has both wave and particle properties
  • D. is made up of dual materials
View Answer & Discuss WAEC 2000
2250
The force between the molecules of a liquid in contact with that of a solid is
  • A. adhesive
  • B. cohesive
  • C. magnetic
  • D. repulsive
View Answer & Discuss (2) WAEC 2002
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