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 2461: 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 2462:

  A person standing waist-deep in a swimming pool appears to have short legs because of light?

  Options:
  A) diffraction
  B) refraction
  C) reflection
  D) interference
  Show Answer
  The correct answer is B .
• Question 2463:

  The conductivity of gases at low pressure can be termed as

  I. hot cathode emission

  II. thermo ionic emission

  III. cold cathode emission

  IV. Field emission

  Options:
  A) I and II
  B) II and III
  C) III and IV
  D) IV and V
  Show Answer
  The correct answer is C .
• Question 2464: Two cars moving in the same direction have speeds of 100 kmh^-1 and 130 kmh^-1 what is the velocity of the faster car as measured by an observer in the slower car? Options:
  A) 30 kmh^-1
  B) 130 kmh^-1
  C) 200 kmh
  D) 230 kmh^-1
  Show Answer
  The correct answer is A .
• Question 2465: Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V. Options:
  A) 0.02 J
  B) 0.10 J
  C) 0.20 J
  D) 1.00 J
  E) 10.00 J
  Show Answer
  The correct answer is E .
• Question 2466: The name given to the characteristics behaviour of substances which set their length perpendicular to a strong magnetic field instead of in line with it is Options:
  A) magnetization
  B) paramagnetism
  C) diamagnetism
  D) demagnetism
  E) ferromagnetism
  Show Answer
  The correct answer is A .
• Question 2467: The resultant force of a couple is ………? Options:
  A) Infinity
  B) Zero
  C) One
  D) Half
  Show Answer
  The correct answer is B .
• Question 2468:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 2469:

  

  The figure above shows a uniform wood of weight 200N and length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degrees to the wood. Calculate the tension in the cord if the wood is horizontal.

  Options:
  A) 10N
  B) 20N
  C) 100N
  D) 200N
  Show Answer
  The correct answer is D .
• Question 2470: The instrument to measure the relative density of light is Options:
  A) thermometer
  B) hydrometer
  C) spring balance
  D) beaker
  Show Answer
  The correct answer is B .