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Friday, 22 May 2026
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Physics Past Questions and Answers

Jamb 1993 Physics Questions

Question 6:
The force experienced by an object of mass 60.0kg in the moon's gravitational field is 1.002 x 102N. What is the intensity of the gravitational field?
  • A 0.60Nkg<sup style='font-size: smaller;'>-1</sup>
  • B 1.67Nkg<sup style='font-size: smaller;'>-1</sup>
  • C 6.12 x 10<sup style='font-size: smaller;'>2</sup>Nkg<sup style='font-size: smaller;'>-1</sup>
  • D 9.81ms<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 7:
Which of the following correctly describes the energy changes in the generation of light by a hydroelectric power station?
  • A Electrical \(\to\) mechanical \(\to\) potential
  • B Potential \(\to\)mechanical \(\to\)electrical \(\to\) light
  • C Mechanical \(\to\) sound \(\to\) electrical \(\to\) light
  • D Kinetic \(\to\) mechanical \(\to\) electrical \(\to\)light
View Answer & Explanation
Question 8:
A plane inclined at angle \(\theta\) has a velocity ratio of 10 : 1. The inclination of the plane to the horizontal is given by
  • A Tan\(\theta\) = \(\frac{1}{10}\)
  • B Cot\(\theta\) = \(\frac{1}{10}\)
  • C Cos\(\theta\) = \(\frac{1}{10}\)
  • D Sin\(\theta\) = \(\frac{1}{10}\)
View Answer & Explanation
Question 9:
A weightless vessel of dimensions 4m x 3m x 2m is filled with a liquid of density 1000kgm-3 and sealed. What is the maximum pressure this container can exert on a flat surface? [g = 10ms-2]
  • A 9 x 10<sup style='font-size: smaller;'>4</sup>NM<sup style='font-size: smaller;'>-2</sup>
  • B 4 x 10<sup style='font-size: smaller;'>4</sup>NM<sup style='font-size: smaller;'>-2</sup>
  • C 3 x 10<sup style='font-size: smaller;'>4</sup>NM<sup style='font-size: smaller;'>-2</sup>
  • D 2 x 10<sup style='font-size: smaller;'>4</sup>NM<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 10:
An object of mass 400g and density 600kgm-3 is suspended with a sting so that half of it is immersed in paraffin of density 900kgm-3. The tension in the string is
  • A 1.0N
  • B 3.0N
  • C 4.0N
  • D 5.0N
View Answer & Explanation