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Friday, 22 May 2026
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Physics Past Questions and Answers

Jamb 1994 Physics Questions

Question 36:
Which of the following are found in the receiver but not in the microphone of a telephone handset? i. Diaphragm. ii. soft iron pole pieces. iii. permanent magnet. iv.carbon blocks
  • A I and ii
  • B I and iv
  • C Ii and iii
  • D Iii and iv
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Question 37:
If two parallel conductors carry currents flowing in the same direction, the conducts will
  • A Attract each other
  • B Repel each other
  • C Both move in the same direction
  • D Have no effect on each other
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Question 38:
A certain radioisotope of \(^{235}_{92}U\) emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are
  • A 219 and 87
  • B 84 and 223
  • C 223 and 87
  • D 219 and 81
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Question 39:
If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then
  • A No electron will be emitted
  • B The few electrons emitted will have a maximum kinetic energy of 1eV
  • C The few electrons emitted will have a maximum kinetic energy of 3eV
  • D Many electrons will be emitted
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Question 40:
A spring of length 25cm is extended to 30cm by a load of 150N attached to one of its end, what is the energy stored in the spring?
  • A 3750J
  • B 2500J
  • C 3.75J
  • D 2.50J
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