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 1311:

  

  The arrow represents an object in front of a convex mirror whose focal points are X and Y. The image formed is

  Options:
  A) between X and P
  B) Between P and Y
  C) Between Y and Z
  D) Outside W
  E) Outside Z
  Show Answer
  The correct answer is B .
• Question 1312: A train with an initial velocity of 20ms^-1 is subjected to a uniform deceleration of 2m^-2. The time required to bring the train to a complete halt is? Options:
  A) 5s
  B) 10s
  C) 20s
  D) 40s
  Show Answer
  The correct answer is B .
• Question 1313: One end of a long wire is fixed while a vibrator is attached to the other end. When the vibrator is energized, the types of waves generated in the wire are Options:
  A) stationary and longitudinal
  B) stationary and transverse
  C) progressive and transverse
  D) progressive and longitudinal
  Show Answer
  The correct answer is C .
• Question 1314: A man wears convex lens glasses of focal length 40cm in order to correct his eye defect. instead of the optimum 25cm, his least distance of distinct vision is Options:
  A) 14cm
  B) 28cm
  C) 75cm
  D) 150cm
  Show Answer
  The correct answer is D .
• Question 1315: If the inclination at Ibadan is 7^oS, this means that Options:
  A) the angle between the geographic meridian and the magnetic meridian at Ibadan is 7^o
  B) the earth's magnetic intensity at Ibadan makes angle 7^o with the horizontal direction
  C) a magnetic needle will be inclined at 7^o to the vertical at Ibadan
  D) the north pole of a magnetic needle dips downward at Ibadan
  Show Answer
  The correct answer is B .
• Question 1316:
  

  On a particular hot day, the temperature is 40°C and the partial pressure of water vapor in the air is 38.8 mmHg. What is the relative humidity?

  Options:
  A) 70
  B) 62
  C) 80
  D) 42
  Show Answer
  The correct answer is A .
• Question 1317: An object is placed directly below a glass block of thickness 3.0cm. Calculate the lateral displacement of the object if the refractive index of the glass is 1.5. Options:
  A) 1.0cm
  B) 1.5cm
  C) 2.0cm
  D) 2.5cm
  Show Answer
  The correct answer is A .
• Question 1318: The function of the system of granulated carbon mixed with manganese (IV) oxide in a Letanche cell is to Options:
  A) increase the e.m.f. of the cell to 2.0V
  B) prevent local action in the cell
  C) prevent polarisation in the cell
  D) make the cell black and hence a good radiator
  Show Answer
  The correct answer is C .
• Question 1319: In which of the following is surface tension important? Options:
  A) the floating of a ship in water
  B) the floating of a dry needle in water
  C) the floating of a baloon in air
  D) the diffusion of sugar solution across a membrane
  Show Answer
  The correct answer is B .
• Question 1320:

  If the stress on a wire is 10${}^7$NM${}^{-2}$ and the wire is stretched from its original length of 10.00m to 10.05m. The young'smodulus of the wire is?

  Options:
  A) 5.0 x 10${}^{-4}$Nm${}^{-2}$
  B) 5.0 x 10${}^{-5}$Nm${}^{-2}$
  C) 2.0 x 10${}^{-8}$Nm${}^{-2}$
  D) 2.0 x 10${}^9$Nm${}^{-2}$
  Show Answer
  The correct answer is D .