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Monday, 20 April 2026
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Physics Past Questions and Answers

Topic: Concept of beam balance

Jamb Physics Questions - Concept of beam balance

Question 1:
The equilibrium position of objects in any field corresponds to situation of
  • A Equipotential energy
  • B Maximum potential energy
  • C Minimum potential energy
  • D Maximum kinetic energy
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Question 2:
Which of the following statements is incorrect? The sensitivity of a galvanometer which incorporates an optical lever arrangement may be increased by providing
  • A A larger number of turns in the coil
  • B A thinner suspension with a small torsional control
  • C A special alloy permanent magnet which gives a high magnetic flux
  • D All of the above
  • E A light source with a greater intensity
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Question 3:
A weight of 1000 grams hangs from a lever 20cm to the fulcrum. At the left is a 500-gram weight 20cm from the fulcrum, and a 200-gram weight x cm away from the fulcrum. What is the value of x that will make the lever balanced?
  • A 50cm
  • B 20cm
  • C 10cm
  • D 30cm
  • E 70cm
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Question 4:
A uniform bean HK of length 10m and weighing 200N is supported at both ends as shown above. A man weighing 1000N stands at a point P on the beam. If the reactions at point H an K respectively are 800N and 400N, Then the distance HP is
  • A 4m
  • B 3.5m
  • C 3m
  • D \( 6 \frac{2}{3} \)m
  • E 7m
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Question 5:
A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds. If acceleration due to gravity is 10ms-2, the power expended is
  • A 100W
  • B 200W
  • C 250W
  • D 400W
  • E 500W
View Answer & Explanation