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Wednesday, 04 November 2026
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Physics Past Questions and Answers

Jamb 2006 Physics Questions

Question 26:
The process through which free electrons leave the surface of hot metal is known as?
  • A Photon emission
  • B Photo emission
  • C Thermionic emission
  • D Electron emission
View Answer & Explanation
Question 27:
The battery connection that permits current to flow across a p-n junction is called?
  • A Reverse baised
  • B Forward baised
  • C Amplification.
  • D Rectification
View Answer & Explanation
Question 28:
One of the properties of gamma rays is that they are?
  • A Neutral
  • B Massive
  • C Positively charged
  • D Negatively charged
View Answer & Explanation
Question 29:
A radioactive element has a half life of 4 days. The fraction that has decayed in 16 days is?
  • A (15)/16
  • B (1)/16
  • C (3)/4
  • D (1)/4
View Answer & Explanation
Question 30:
The theory of electronic conduction in solids, which satisfactorily explains the properties of conductors, insulators and semi-conductor,is?
  • A String theory
  • B Particle theory
  • C Group theory
  • D Band theory
View Answer & Explanation