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Sunday, 25 October 2026
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Physics Past Questions and Answers

Jamb 2001 Physics Questions

Question 6:
The efficiency of a machine is always less than 100% because the
  • A Work output is always greater than the work input
  • B Load lifted is always greater than the effort applied
  • C Effort applied is always greater than the load lifted
  • D Velocity ratio is always greater than the mechanical advantage
View Answer & Explanation
Question 7:
Which of the following consists entirely of vector quantities?
  • A Velocity, magnetic fulx and reaction
  • B Tension, magnetic flux and mass
  • C Displacement, impulse and power
  • D Work, pressure and moment
View Answer & Explanation
Question 8:
Ice cubes are added to a glass of warm water. The glass and water are cooled by
  • A Conduction only
  • B Convection only
  • C Conduction and convection
  • D Convection and radiation
View Answer & Explanation
Question 9:
A ray of light strikes a plane mirror at an angle of incidence of 35°. If the mirror is rotated through 10°, through what angle is the reflected ray rotated?
  • A 70°
  • B 45°
  • C 25°
  • D 20°
View Answer & Explanation
Question 10:
The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for
  • A Improving the sharpness
  • B Creating an inverted image
  • C Magnification of the image
  • D Erection of the image
View Answer & Explanation