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 431: An object is placed in front of a concave mirror whose radius of curvature is 12cm. If the magnification of the Image produced is 1.5, how far is the object from the mirror? Options:
  A) 8cm
  B) 10cm
  C) 15cm
  D) 18cm
  E) 20cm
  Show Answer
  The correct answer is B .
• Question 432: A sound wave from a ship is received 8.4s later. What is the depth of the sea? [Speed of sound in water = 1500ms^-1] Options:
  A) 0.179km
  B) 0.357km
  C) 3.150km
  D) 6.300km
  E) 12.600km
  Show Answer
  The correct answer is D .
• Question 433: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 434: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 435:

  

  Four resistors R1, R2, R3 and R4 are connected in series as shown above, V1, V2, V3 are voltmeters connected as indicated above. Which of the following relations is correct??

  Options:
  A) V1 = V3 =V2/2
  B) V1 = 2V2 = V3
  C) V1=1/2V3 =V3
  D) V2 - V1 = V3
  Show Answer
  The correct answer is A .
• Question 436: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 437:

  

  The velocity time graph above describes the motion of a particle between two points P and Q. What is the distance between P and Q?

  Options:
  A) 17.0m
  B) 18.0m
  C) 22.5m
  D) 30.0m
  Show Answer
  The correct answer is B .
• Question 438: Calculate the force acting on an electron of charge 1.6 x 10^-19C placed in an electric field of intensity 10⁸Vm^-1 Options:
  A) 1.6 x 10^-11N
  B) 1.6 x 10^-14N
  C) 1.6 x 10^-16N
  D) 1.0 x 10^-16N
  Show Answer
  The correct answer is A .
• Question 439: A landlord has eight 40W electric light bulbs, four 60W bulbs and two 100W bulb in his house. If he has all the points on for five hours daily and if N.E.P.A. charges 5k per unit, his bill for 30 days is Options:
  A) N5.70
  B) N7.23
  C) N3.65
  D) N8.05
  E) N4.50
  Show Answer
  The correct answer is A .
• Question 440:

  

  A body of mass 6kg rests on an inclined plane. The normal reaction is R and the limiting frictional force is F as shown in the image above. if F = 30N, and g = 10ms² then the angle of inclination $\theta$ is

  Options:
  A) ${15}^{\circ }$
  B) ${30}^{\circ }$
  C) ${45}^{\circ }$
  D) ${60}^{\circ }$
  E) ${75}^{\circ }$
  Show Answer
  The correct answer is B .