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: Energy losses through eddy currents are reduced by using Options:
  A) low resistance wires
  B) insulated soft iron wires
  C) few turns of wires
  D) high resistance wires
  Show Answer
  The correct answer is B .
• Question 1332:

  

  For the wave motion represented above, the wavelength is given by

  Options:
  A) p
  B) q
  C) r
  D) s
  E) t
  Show Answer
  The correct answer is D .
• Question 1333: The thermal expansion of a solid is an advantage in Options:
  A) Balance wheel of a watch
  B) Construction of steel rail lines
  C) Construction of large steel bridges
  D) Fitting of tyres on wheels
  Show Answer
  The correct answer is A .
• Question 1334: A pencil is placed vertically between a concave mirror and its focal point. The image of the pencil in the mirror will be Options:
  A) real, inverted and diminished
  B) virtual, inverted and enlarged
  C) real, erect and enlarged
  D) virtual, erect and enlarged
  Show Answer
  The correct answer is D .
• Question 1335:

  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 1336:
  

  The property of wave shown in the diagram above is?

  Options:
  A) Diffraction
  B) Refraction
  C) Polarisation
  D) Interference
  Show Answer
  The correct answer is A .
• Question 1337: A near sighted student has a near point of 0.1m and a focal length of 5.0cm. What is the student's far point? Options:
  A) 0.200m
  B) 8.000m
  C) 0.125m
  D) 2.100m
  E) No Correct Option
  Show Answer
  The correct answer is E .
• Question 1338: Which of the following statements is NOT correct? Options:
  A) Brownian motion is an evidence of the particle nature of matter
  B) Atoms combine to form molecules
  C) The molecules of matter are in constant motion
  D) matter is made up of molecules
  Show Answer
  The correct answer is C .
• Question 1339: In alternating current theory, the units of impedance, r.m.s. voltage and resonance frequency are respectively equal to Options:
  A) volt, ampere and hertz
  B) ohms, volt and hertz
  C) watt, ohms and radian
  D) ohms, hertz and joule
  Show Answer
  The correct answer is B .
• Question 1340:

  Which of the following statements is/are correct for a freely falling body?

  I. the total is entirely kinetic

  II. the ratio of potential energy to kinetic energy is constant

  III. the sum of potential and kinetic energy is constant

  Options:
  A) I only
  B) II only
  C) III only
  D) I and III only
  Show Answer
  The correct answer is C .