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Sunday, 15 March 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 26:
A radio station broadcast at a frequency of 600KHZ. If the speed of light in air is 3 à— 108ms\(^{−1}\). Calculate the wavelength of the radio wave
  • A 2.20 à— 10\(^3\)m
  • B 5.0 × 10\(^2\)m
  • C 5.0 à— 10\(^5\)m
  • D 11.8 à— 10\(^{11}\)m
View Answer & Explanation
Question 27:
Which of the following is a scalar quantity?
  • A Tension
  • B Weight
  • C Impulse
  • D Mass
View Answer & Explanation
Question 28:
Determine the focal length of a thin converging lens if the power is 5.0 dioptres
  • A 0.1 m
  • B 0.2 m
  • C 2.0 m
  • D 2.5 m
View Answer & Explanation
Question 29:
A string of length 5cm is extended by 0.04m when a load of 0.8kg is suspended at the end. How far will it extend if a force of 16N is applied? [g = 10ms\(^{-2}\)]
  • A 0.04m
  • B 0.12m
  • C 0.01m
  • D 0.08m
View Answer & Explanation
Question 30:
How can energy loss be minimized through Eddy-current?
  • A By using high resistance wire
  • B By using insulated soft iron wires
  • C By using low resistance wires
  • D Bu using turns of wires
View Answer & Explanation