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 1971:

  If in a simple pendulum experiment the length of the inextensible string is increased by a factor offour, its period is increased by a factor of?

  Options:
  A) 4
  B) $\frac{\pi }{2}$
  C) $\frac{1}{4}$
  D) 2
  Show Answer
  The correct answer is D .
• Question 1972: Which of the following is the dimension of pressure? Options:
  A) ML^-1T^-2
  B) MLT^-2
  C) ML²T^-3
  D) ML^-3
  Show Answer
  The correct answer is A .
• Question 1973:

  Natural radioactivity consists of the emission of

  Options:
  A) α- particles and β-rays
  B) α- particles and X-rays
  C) α- particles, β - rays and g-rays
  D) γ- rays and X-rays
  Show Answer
  The correct answer is C .
• Question 1974:

  A body moves in SHM between two point 20m on the straight line Joining the points. If the angular speed of the body is 5 rad/s. Calculate its speed when it is 6m from the center of the motion.

  Options:
  A) 20 m/s
  B) 30 m/s
  C) 40 m/s
  D) 50 m/s
  Show Answer
  The correct answer is C .
• Question 1975: The displacement d produced in a glass block of thickness t and refractive index n when an object is viewed through it is Options:
  A) t – n
  B) t (1 + 1/n)
  C) t (1-1/n)
  D) t (1/n - 1)
  Show Answer
  The correct answer is C .
• Question 1976:

  

  In the diagram above, the ratio of he electric power dissipated in the 6Ω and the 3Ω resistor respectively is

  Options:
  A) 2:1
  B) 2:2
  C) 1:3
  D) 1:2
  Show Answer
  The correct answer is D .
• Question 1977: An object moves with uniform speed round a circle. Its acceleration has Options:
  A) constant magnitude and constant direction
  B) constant magnitude and varying direction
  C) varying magnitude but constant direction
  D) varying magnitude and varying direction
  Show Answer
  The correct answer is B .
• Question 1978:

  

  The diagram above shows three circuits, the internal resistances of the batteries are negligible. which of the currents is the largest

  Options:
  A) I₁
  B) I₂
  C) I₃
  D) I₄
  E) I₅
  Show Answer
  The correct answer is E .
• Question 1979: In an A.C circuit, the ratio of r.m.s value to peak value of current is Options:
  A) 2
  B) $\frac{1}{2}$
  C) $\frac{1}{\sqrt{2}}$
  D) $\sqrt{2}$
  Show Answer
  The correct answer is C .
• Question 1980: If the linear magnification of the objective and eyepiece convex lenses of a compound microscope are 4 and 7 respectively. Calculate the angular magnification of the microscope Options:
  A) 2
  B) 3
  C) 11
  D) 28
  Show Answer
  The correct answer is D .