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 2341:

  I. A liquid boils when its saturated vapour pressure is equal to the external pressure

  II. Dissolved substances in pure water lead to increase in the boiling point.

  III. When the external pressure is increased, the boiling point increases.

  IV. Dissolved substances in pure water decrease the boiling point.Which combination of the above are peculiarities of the boiling point of a liquid?

  Options:
  A) I, II and III
  B) I, II, III and IV
  C) I, II and IV
  D) II, III and IV
  Show Answer
  The correct answer is A .
• Question 2342: The following are the scores of ten students in a test of 20 marks: 15, 16, 17, 13, 16, 8, 5, 16, 19, 17. What is the modal? Options:
  A) 13
  B) 15
  C) 16
  D) 19
  Show Answer
  The correct answer is C .
• Question 2343:

  Which of the following statements about radioactivity is true?

  (i) Alpha particle is positively charged

  (ii)Beta particle is negativelycharged

  (iii) Gamma ray is neutral

  (iv) Beta particle has thesame massas helium atom

  (v) Gamma ray is charged.

  Options:
  A) i, ii, iii, iv only
  B) i, ii, iii only
  C) iv and v only
  D) i, ii and v only
  Show Answer
  The correct answer is B .
• Question 2344: 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 2345:

  Which statements(s) is/are NOT true?

  I. A saturated vapour is one that is in equilibrium with its liquid in a closed space.
  II. A vapour contains molecules with varying kinetic energy and their distances apart are smaller than those of the molecules of a liquid
  III. Relative Humidity = $\frac{\text{Saturated vapour pressure at dew point}}{\text{Saturated vapour pressure at air temperature}}$ x 100%
  IV. The saturated vapour pressure of water increases with temperature

  Options:
  A) I only
  B) II only
  C) II and III only
  D) III and IV only
  E) II, III and IV only
  Show Answer
  The correct answer is B .
• Question 2346:

  Which of the following obeys Ohm's law?

  Options:
  A) all metals
  B) diode only
  C) all electrolytes
  D) glass
  Show Answer
  The correct answer is A .
• Question 2347:

  

  The diagram above shows a velocity time graph representing the motion of a car. Find the total distance covered during the acceleration and retardation of the motion

  Options:
  A) 75m
  B) 150m
  C) 300m
  D) 375m
  Show Answer
  The correct answer is A .
• Question 2348: Change of state is accompanied by change of Options:
  A) temperature
  B) volume
  C) heat content
  D) temperatureb and volume
  E) volume and heat content
  Show Answer
  The correct answer is C .
• Question 2349:

  

  In the diagram above, the hanging mass m2 is adjusted until m1 is on the verge of sliding. The coefficient of static friction between the mass m1 and the table is

  Options:
  A) m1/m2
  B) m1g/m2
  C) m2/m1
  D) m2g/m1
  Show Answer
  The correct answer is C .
• Question 2350:

  I. Total internal reflection of light.

  II. Conservation of light energy.

  III. Relative motion of the earth, sun and moon.

  IV. Rectilinear propation of light.

  Which of the above is a phenomenon of total solar eclipse?

  Options:
  A) I and IV only
  B) II and IV only
  C) I and III only
  D) III and IV only
  Show Answer
  The correct answer is D .