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Friday, 19 June 2026
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Physics Past Questions and Answers

Jamb 2023 Physics Questions

Question 56:
A simple pendulum, has a period of 5.77 seconds. When the pendulum is shortened by 3 m, the period is 4.60 seconds. Calculate the new length of the pendulum
  • A 5.23 m
  • B 6.42 m
  • C 4.87 m
  • D 7.26 m
View Answer & Explanation
Question 57:
Three forces with magnitudes 16 N, 12 N and 21 N are shown in the diagram below. Determine the magnitude of their resultant force and angle with the x-axis
  • A 7.63N,61°
  • B 8.71N,61°
  • C 7.63N,29°
  • D 8.71N,29°
View Answer & Explanation
Question 58:
A travelling wave of amplitude 0.80 m has a frequency of 16 Hz and a wave speed of 20 \(ms-1\) Calculate the wave number of the wave.
  • A 3
  • B 4
  • C 5
  • D 2
View Answer & Explanation
Question 59:
The near point of a patient's eye is 50.0 cm. What power (in diopters) must a corrective lens have to enable the eye to see clearly an object 25.0 cm away?
  • A 2 diopters
  • B 2.5 diopters
  • C 0.5 diopters
  • D 3 diopters
View Answer & Explanation
Question 60:
Which of the following is/are [b]not[/b] true about the heat capacity of a substance? (i) It is an intensive property (ii) Its S.I unit is \(jK-1\) (iii) It is an extensive property (iv) Its S.I unit is \(jkg-1\)
  • A (i) and (iii) only
  • B (i), (ii) and (iv) only
  • C (i) and (iv) only
  • D (ii) and (iii) only
View Answer & Explanation