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 1031: A good electric cell should have the following except Options:
  A) A minimum of polarization effect
  B) A long life
  C) A cheap and safe electrolytes
  D) Cost and dangerous of the cell
  Show Answer
  The correct answer is D .
• Question 1032: Which of the following i. $\beta$-particles ii. protons iii. neutrons iv. $\alpha$-particles. may be found in light nuclei? Options:
  A) i and ii
  B) i and iii
  C) ii and iv
  D) ii and iii
  E) i, ii and iii
  Show Answer
  The correct answer is D .
• Question 1033: A galvanometer of resistance 5.0W has full-scale deflection for a current of 100mA. How would its range be extended to 1.0A? By placing a resistance of Options:
  A) $\frac{5}{9}$$\mathrm{\Omega }$ in parallel
  B) $\frac{9}{5}$$\mathrm{\Omega }$ in series
  C) 45$\mathrm{\Omega }$ in parallel
  D) 45$\mathrm{\Omega }$ in series
  E) $\frac{9}{5}$$\mathrm{\Omega }$ in parallel
  Show Answer
  The correct answer is E .
• Question 1034: Which of the following arrangements of the components of electromagnetic spectrum is in ascending order of wavelengths? Options:
  A) Gamma rays, ultraviolet rays, X- rays, infra - red rays
  B) Gamma rays, X-rays, ultraviolet rays, infra-red rays
  C) infra-red rays, ultraviolet rays, X-rays, gamma rays
  D) Gamma rays, ultraviolet rays, infra-red rays, X-rays
  Show Answer
  The correct answer is B .
• Question 1035:

  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.

  Options:
  A) 3
  B) 4
  C) 5
  D) 2
  Show Answer
  The correct answer is C .
• Question 1036: How long does it take a 750W heater to raise the temperature of 1kg of water from 20^oC to 50^oC [specific heat capacity of water = 4200Jkg^-1K^-1] Options:
  A) 84s
  B) 112s
  C) 168s
  D) 280s
  Show Answer
  The correct answer is C .
• Question 1037: What happens when three coplanar non-parallel forces are in equilibrium? Options:
  A) Their lines of action are parallel.
  B) They are represented in magnitude only
  C) They are represented in direction only
  D) Their lines of action meet at a point
  Show Answer
  The correct answer is D .
• Question 1038:

  One newton × One meter equals?

  Options:
  A) One water
  B) One Joule
  C) One ampere
  D) One kilogram
  Show Answer
  The correct answer is B .
• Question 1039: When a plane mirror at which a ray is incident is rotated through an angle $\theta$, the reflected ray will be rotated through Options:
  A) $\frac{1}{2}$$\theta$
  B) $\theta$
  C) 2$\theta$
  D) 3$\theta$
  Show Answer
  The correct answer is C .
• Question 1040: In a tuned radio receiver R, L, C series circuit for resonance, the inductive and capacitive reactance X_L and X_C respectively are related as Options:
  A) X_L = X_C
  B) X_L = ¹/₂X_C
  C) X_L = ¹/_XC
  D) X_L = 2X_C
  Show Answer
  The correct answer is A .