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 1221:

  

  A uniform bean HK of length 10m and weighing 200N is supported at both ends as shown above. A man weighing 1000N stands at a point P on the beam. If the reactions at point H an K respectively are 800N and 400N, Then the distance HP is

  Options:
  A) 4m
  B) 3.5m
  C) 3m
  D) $6\frac{2}{3}$m
  E) 7m
  Show Answer
  The correct answer is C .
• Question 1222:

  

  E, F and G are yellow, red and cyan transparent light filters respectively. The color of a white opaque object when viewed through the arrangement of the filters above is

  Options:
  A) yellow
  B) red
  C) black
  D) blue
  Show Answer
  The correct answer is C .
• Question 1223: Which of the following methods CANNOT be used to produce a steel magnet? The Options:
  A) passing of an electric current through a solenoid
  B) repeated stroking of the specimen with a magnet
  C) repeated stroking of the specimen in opposite directions with magnets
  D) heating of the specimen
  E) hammering of the specimen in the earth's magnetic field
  Show Answer
  The correct answer is D .
• Question 1224: The force of repulsion between two point positive charges 5$\mu$C and 8$\mu$C separated at a distance of 0.02 map art is. [$\frac{1}{4\pi {\epsilon }_o}$ = 9 x 10⁹Nm²C^-2] Options:
  A) 1.8 x 10^-10N
  B) 9.0 x 10^-8N
  C) 9.0 x 10²N
  D) 4.5 x 10³N
  Show Answer
  The correct answer is C .
• Question 1225:

  If a sound wave goes from a cold air region to a hot air region, its wavelength will?

  Options:
  A) increase
  B) decrease
  C) decrease then increase
  D) remain constant
  Show Answer
  The correct answer is A .
• Question 1226: A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen? Options:
  A) 0.05m
  B) 0.15m
  C) 0.30m
  D) 1.00m
  Show Answer
  The correct answer is A .
• Question 1227: 200g of water at 90^oC is mixed with 100g of water at 30^oC. What is the final temperature? Options:
  A) 50^oC
  B) 60^oC
  C) 70^oC
  D) 80^oC
  Show Answer
  The correct answer is C .
• Question 1228: A uniform meter rule weighing 0.5N is to be pivoted on a knife-edge at the 30cm-mark. where will a force of 2N be placed from the pivot to balance the meter rule? Options:
  A) 95cm
  B) 25cm
  C) 20cm
  D) 5cm
  Show Answer
  The correct answer is B .
• Question 1229: The frequency of beats produced when two tunning forks of frequencies 258Hz and 270Hz are sounded close to each other Options:
  A) 6Hz
  B) 264Hz
  C) 528Hz
  D) 12Hz
  Show Answer
  The correct answer is D .
• Question 1230:

  Lamps in domestic lightings are usually in

  Options:
  A) series
  B) divergent
  C) convergent
  D) parallel
  Show Answer
  The correct answer is D .