Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 951: Two metals P and Q of length l₁ and l₂ are heated through the same temperature difference. If the ratio of the linear expansivities of P to Q is 2:3 and the ratio of lengths is 3:4. What is the ratio of increase in length of P to Q? Options:
  A) 7:5
  B) 5:7
  C) 1:2
  D) 2:1
  Show Answer
  The correct answer is C .
• Question 952:

  Which of the following may be used to explain a mirage?

  I. Layers of air near the road surface have varying refractive indices in hot weather

  II. Road surfaces sometimes become good reflectors in hot weather

  III. Light from the sky can be reflected upwards after coming close to the road surface.

  Options:
  A) I and III only
  B) II and III only
  C) II only
  D) I, II and III
  Show Answer
  The correct answer is A .
• Question 953: A slight loading of a tuning fork has the effect of Options:
  A) decreasing its amplitude
  B) increasing its amplitude
  C) decreasing its frequency
  D) increasing its frequency
  Show Answer
  The correct answer is B .
• Question 954: Which of the following are true of atom? Options:
  A) atoms are indestructible
  B) all atoms of a pure substance, or elements are identical
  C) atoms of different substance have different weights
  D) all of the above
  E) A and B only
  Show Answer
  The correct answer is C .
• Question 955: X rays can be used in the study of crystal structure because they Options:
  A) have a very long-reaching wavelength
  B) have extremely short wavelength
  C) are invisible
  D) are very fast
  Show Answer
  The correct answer is B .
• Question 956: When light passes through two media x and y of refraction indices 1.51 and 1.33 respectively, the speed of light in Options:
  A) x is same as in y
  B) x and y is same as in vacuum
  C) x is higher than in y
  D) y is higher than in x
  Show Answer
  The correct answer is D .
• Question 957: If a mango fruit dropped at a height of 50 meters. How long does it reach the ground? (take g = 10m/s²) Options:
  A) 2 sec
  B) 3 sec
  C) 4sec
  D) 3.2sec
  Show Answer
  The correct answer is D .
• Question 958: The maximum kinetic energy of the photoelectron emitted from a metal surface is 0.34eV. If the work function of the metal surface is 1.83eV,find the stopping potential. Options:
  A) 2.17V
  B) 1.49V
  C) 1.09V
  D) 0.34V
  Show Answer
  The correct answer is D .
• Question 959:

  

  Two taxis leave Benin and Agbor some 80km apart at 1200hr as shown above. from the distance time graph shown the distance of their meeting point P, from Benin and the time of their meeting are

  Options:
  A) 27km, 1218hr
  B) 29km, 1315hr
  C) 40km, 1418hr
  D) 53km, 1436hr
  E) 60km, 1500hr
  Show Answer
  The correct answer is B .
• Question 960:

  

  Find the tension T1 in the diagram above if the system is in equilibrium. [G = 10ms^-2]

  Options:
  A) 200/√3N
  B) 100/√3N
  C) 300/√3N
  D) 100N
  Show Answer
  The correct answer is B .