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Friday, 03 April 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 41:
JAMB 1980
The activity of a radioactive substance depends on
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  • A Temperature and purity
  • B Temperature and age
  • C Purity and age
  • D Age, purity and temperature
  • E None of the above
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Question 42:
JAMB 1980
Natural radioactivity consists of the emission of
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  • A \( \alpha \) -particle and \( \beta \) rays
  • B \( \alpha \) -particle and X-rays
  • C \( \gamma \)-rays and X-rays
  • D \( \alpha \)-particle, \( \beta \) rays and \( \gamma \)-rays
  • E \( \alpha \) -particle, \( \beta \) rays, \( \gamma \)-rays and X-rays
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Question 43:
JAMB 1980
What is the total resistance in the above diagram
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  • A 5 ohms
  • B 15 ohms
  • C 25 ohms
  • D 35 ohms
  • E 45 ohms
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Question 44:
JAMB 1980
The total capacitance of the circuit above is
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  • A 0.25mF
  • B 0.50mF
  • C 0.75mF
  • D 1.25mF
  • E 1.50mF
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Question 45:
JAMB 1980
The Diagram above shows the prism arrangement in a
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  • A Microscope
  • B Tereoscope
  • C Projector
  • D Periscope
  • E Gyroscope
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