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 1331: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 1332: Which of the following phenomena explains the formation of a mirage? i. Reflection ii. Refraction iii. Diffraction Options:
  A) i and ii only
  B) ii and iii only
  C) i and iii only
  D) i, ii, and iii only
  Show Answer
  The correct answer is A .
• Question 1333:

  A supply of 400V is connected across capacitors of 3μf and 6μf in series. Calculate the charge.

  Options:
  A) 8 x 10${}^{-4}$C
  B) 4 x 10${}^{-2}$C
  C) 8 x 10${}^{-3}$C
  D) 4 x 10${}^{-8}$C
  Show Answer
  The correct answer is A .
• Question 1334:

  Natural radioactivity consists of the emission of

  Options:
  A) α- particles and β-rays
  B) α- particles and X-rays
  C) α- particles, β - rays and g-rays
  D) γ- rays and X-rays
  Show Answer
  The correct answer is C .
• Question 1335:

  I. Total internal reflection of light.

  II. Conservation of light energy.

  III. Relative motion of the earth, sun and moon.

  IV. Rectilinear propation of light.

  Which of the above is a phenomenon of total solar eclipse?

  Options:
  A) I and IV only
  B) II and IV only
  C) I and III only
  D) III and IV only
  Show Answer
  The correct answer is D .
• Question 1336: An electric kettle, connected to a 240V mains, produces 6.0 x 10⁵J of heat energy to boil a quantity of water in 5 minutes. Find the resistance of the kettle. Options:
  A) 14.4$\mathrm{\Omega }$
  B) 28.8$\mathrm{\Omega }$
  C) 144$\mathrm{\Omega }$
  D) 288$\mathrm{\Omega }$
  E) 2880$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 1337: Which of the following is stored by a dry Leclanche cell? Options:
  A) Electrical power
  B) Kinetic energy
  C) Electric current
  D) Chemical energy
  Show Answer
  The correct answer is D .
• Question 1338: A travelling wave moving from left to right has an amplitude of 0.15m, a frequency of 550Hz and a wavelength of 0.01m. The equation describing the wave is Options:
  A) y = 0.15 sin 200π(x - 5.5t)
  B) y = 0.15 sin π(0.01x - 5.5t)
  C) y = 0.15 sin 5.5π(x - 200t)
  D) y = 0.15 sin π(550x - 0.01t)
  Show Answer
  The correct answer is A .
• Question 1339: If a current carrying coil is mounted on a metal frame, the back e.m.f. induced in the coil causes Options:
  A) inductance
  B) eddy currents
  C) elecro-magnetism
  D) dipole moment
  Show Answer
  The correct answer is B .
• Question 1340: The physical properties of sound waves can best be described by Options:
  A) reflection and diffraction
  B) polarization and reflection
  C) polarization and diffraction
  D) polarization and refraction
  Show Answer
  The correct answer is A .