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Thursday, 14 May 2026
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Physics Past Questions and Answers

Jamb 2013 Physics Questions

Question 11:
The coefficient of friction between two perfectly smooth surface is
  • A Infinity
  • B One
  • C Half
  • D Zero
View Answer & Explanation
Question 12:
What effort will a machine of efficiency 90% apply to lift a load of 180N if its efforts arm is twice as long as its load arm?
  • A 80N
  • B 90N
  • C 100N
  • D 120N
View Answer & Explanation
Question 13:
Calculate the work done when a force of 20N stretches a spring by 50mm.
  • A 0.5J
  • B 1.5J
  • C 2.0J
  • D 2.5J
View Answer & Explanation
Question 14:
At what depth below the sea-level would one experience a change of pressure equal to one atmosphere? Density of sea water = 1013kg-3, one atmosphere = 0.01 x 105Nm-2, g = 10ms-2
  • A 0.1m
  • B 1.0m
  • C 10.0m
  • D 100.0m
View Answer & Explanation
Question 15:
What volume of alcohol will have same mass as 4.2m-3 of petrol?
Density of alcohol = 8.4 x 102kgm-3, density of petrol =7.2x103kgm-3
  • A 0.8m<sup style='font-size: smaller;'>3</sup>
  • B 1.4m<sup style='font-size: smaller;'>3</sup>
  • C 3.6m<sup style='font-size: smaller;'>3</sup>
  • D 49.m<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation