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Saturday, 02 May 2026
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Physics Past Questions and Answers

Jamb Physics Questions

Question 346:
Two masses 40g and 60g respectively, are attached firmly to the ends of the light meter rule. The center of gravity of the system is
  • A At the mid-point of the meter rule
  • B 40cm from the lighter mass
  • C 40cm from the heavier mass
  • D 60cm from the heavier mass
  • E Indeterninate because the meter-rule is light
View Answer & Explanation
Question 347:
A 0.05kg bullet travelling at 500ms-1 horizontally strikes a thick vertical wall. It stops after penetrating through the wall horizontal distance of 0.25m. What is the magnitude of the average force the wall exerts on the bullet?
  • A 25N
  • B 50N
  • C 250N
  • D 500N
  • E 25 000N
View Answer & Explanation
Question 348:
A force of 100N stretches an elastic string to a total length of 20cm. If an additional force of 100N stretches the string 5cm further, Find the natural length of the string
  • A 15cm
  • B 12cm
  • C 10cm
  • D 8cm
  • E 5cm
View Answer & Explanation
Question 349:
Two divers G and H are at depths 20m and 40m respectively below the water surface in a lake. The pressure on G is P1 while the pressure on H is P2. If the atmospheric pressure is equivalent to 10m of water, then the value of \( \frac{p_2}{p_1} \) is
  • A 0.50
  • B 0.60
  • C 1.67
  • D 2.00
  • E 3.0
View Answer & Explanation
Question 350:
The areas of the effort and load pistons of a hydraulic press are 0.5m2 and 5m2 respectively. If a force F1 of 100N is applied on the effort piston, the force F2 on the load is
  • A 10N
  • B 100N
  • C 500N
  • D 1000N
  • E 5000N
View Answer & Explanation