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 591: If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then Options:
  A) no electron will be emitted
  B) the few electrons emitted will have a maximum kinetic energy of 1eV
  C) the few electrons emitted will have a maximum kinetic energy of 3eV
  D) many electrons will be emitted
  Show Answer
  The correct answer is A .
• Question 592: A 5kg block is released from rest on a smooth plane inclined at an angle of 30^o to the horizontal. What is the acceleration down the plane? [g = 10ms^-2] Options:
  A) 5.0 ms^-2
  B) 5.8 ms^-2
  C) 8.7 ms^-2
  D) 25.0 ms^-2
  Show Answer
  The correct answer is A .
• Question 593:

  Any line or section taken through an advancing wave in which all the particles are in the same phase is called the

  Options:
  A) wavelength
  B) wave coast
  C) wave trough
  D) wave front
  Show Answer
  The correct answer is D .
• Question 594: A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds. If acceleration due to gravity is 10ms^-2, the power expended is Options:
  A) 100W
  B) 200W
  C) 250W
  D) 400W
  E) 500W
  Show Answer
  The correct answer is E .
• Question 595:

  A carstarts from rest and covers a distance of 40 m in 10 s. Calculatethe magnitude of its acceleration

  Options:
  A) 3.20 ms${}^{-2}$
  B) 0.25 ms${}^{-2}$
  C) 0.80 ms${}^{-2}$
  D) 4.00 ms${}^{-2}$
  Show Answer
  The correct answer is C .
• Question 596:

  

  The diagram above shows two capacitors P and Q of capacitance 5μF and 10μF. Find the charges stored in P and Q respectively

  Options:
  A) 2μC and 4μC
  B) 4μC and 2μC
  C) 100μC and 200μC
  D) 200μC and 100μC
  Show Answer
  The correct answer is C .
• Question 597:

  A gas at a volume of V${}_0$ in a container at pressure p${}_0$ is compressed to one-fifth of its volume. What will be its pressure if the magnitude of its original temperature T is constant?

  Options:
  A) $\frac{p_0}{5}$
  B) $\frac{4p_0}{5}$
  C) p${}_0$
  D) 5P${}_0$
  Show Answer
  The correct answer is D .
• Question 598:

  If the fraction of the atoms of a radioactive material left after 120 years is 1/64, what is the half-life of the material?

  Options:
  A) 24 years
  B) 20 years
  C) 10 years
  D) 2 years
  Show Answer
  The correct answer is B .
• Question 599: What is the apparent colour of a RED SHIRT when viewed in PURE green light? Options:
  A) Red
  B) Green
  C) Yellow
  D) Black
  E) Blue
  Show Answer
  The correct answer is D .
• Question 600: 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 .