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 1061:

  One of the following is a scalar quantity?

  Options:
  A) weight
  B) momentum
  C) potential energy
  D) displacement
  Show Answer
  The correct answer is C .
• Question 1062:

  

  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 1063: An object 4 cm high is placed 15 cm from a concave mirror of focal length 5 cm. The size of the image is Options:
  A) 2 cm
  B) 3 cm
  C) 4 cm
  D) 5 cm
  Show Answer
  The correct answer is A .
• Question 1064: What type of electromagnetic radiation can be used to take photographs in the haze? Options:
  A) Radio waves
  B) infrared rays
  C) Visible light
  D) Gamma rays
  Show Answer
  The correct answer is B .
• Question 1065: A thin aluminum plate has a surface area of 1500m at 20^oC. What will be its surface area when it is cooled to -20^oC? (Take the linear expansivity of aluminum to be 2.5 x 10^-5k^-1). Options:
  A) 1.503m²
  B) 1.500m²
  C) 1.498m²
  D) 1.497m²
  E) 1.490m²
  Show Answer
  The correct answer is C .
• Question 1066: The pressure of one mole of an ideal gas of volume 10^-2 m³ at a temperature of 27°c is
  [molar gas constant = 8.3 J mol^-1 k^-1] Options:
  A) 2.49 x 10⁴ Nm^-2
  B) 2.24 x 10⁴ Nm^-2
  C) 2.49 x 10⁵ Nm^-1
  D) 2.24 x 10⁵ Nm^-1
  Show Answer
  The correct answer is C .
• Question 1067:

  

  The diagram above shows a velocity - time graph. The statement that is true about this motion is that the car

  Options:
  A) has no acceleration between point F and G
  B) decelerates between F and H
  C) has a constant soeed between points E and F
  D) Accelerates between points F and G
  Show Answer
  The correct answer is A .
• Question 1068:

  The mercury column in the barometer at notational atmospheric pressure has a height of?

  Options:
  A) 0.76 cm at see level
  B) 760 cm at sea level
  C) 7.6 cm at sea level
  D) 76 cm at sea level
  Show Answer
  The correct answer is D .
• Question 1069: Natural radioactivity consists of the emission of Options:
  A) $\alpha$ -particle and $\beta$ rays
  B) $\alpha$ -particle and X-rays
  C) $\gamma$-rays and X-rays
  D) $\alpha$-particle, $\beta$ rays and $\gamma$-rays
  E) $\alpha$ -particle, $\beta$ rays, $\gamma$-rays and X-rays
  Show Answer
  The correct answer is D .
• Question 1070: a proton moving with a speed of 1.0 x 10⁶ms^-1 through a magnetic field of 1.0T experiences a magnetic force of magnitude 8.0 x 10^-14 N. The angle between the proton''s velocity and the field is Options:
  A) 60°
  B) 90°
  C) 30°
  D) 45°
  Show Answer
  The correct answer is C .