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 291: On which of the following does the operation of a moving coil ammeter depend? i. Electromagnetic induction ii. Force on a carrying-current conductor iii. Magnetic effect of an electric current Options:
  A) i only
  B) ii only
  C) iii only
  D) ii and iii only
  E) i,ii and iii
  Show Answer
  The correct answer is B .
• Question 292: Radio waves have a velocity of 3 x 10⁸ms^-1. A radio station sends out a broadcast on a frequency of 800kHz. The wavelength of the broadcast is Options:
  A) 375.0m
  B) 267.0m
  C) 240.0m
  D) 37.5m
  E) 26.7m
  Show Answer
  The correct answer is A .
• Question 293: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 294: When light passes through two media x and y of refraction indices 1.51 and 1.33 respectively, the speed of light in Options:
  A) x is same as in y
  B) x and y is same as in vacuum
  C) x is higher than in y
  D) y is higher than in x
  Show Answer
  The correct answer is D .
• Question 295:

  The diagram shows a uniform meter rule AB which balances horizontally at the 90cm mark when a mass of 0.2kg is suspended from B. Calculate the mass of the meter rule.

  Options:
  A) 0.05kg
  B) 0.20kg
  C) 0.80kg
  D) 1.00kg
  Show Answer
  The correct answer is A .
• Question 296:

  

  The figure above shows three capacitors, 2μF, 3μF and 6μF connected in series. If the p.d across the system is 12V, the p.d, across the 6μF capacitor is

  Options:
  A) 4V
  B) 12V
  C) 2V
  D) 6V
  Show Answer
  The correct answer is C .
• Question 297: Why is it impossible for the lines of force of an electric field to cross one another? Options:
  A) like charges repel each other
  B) a charged particle is deflected by an eletric field
  C) like charges are arranged on the same line of force
  D) a positively charged particle can travel in only one direction at any time
  E) none of these is correct
  Show Answer
  The correct answer is D .
• Question 298:

  

  In the diagram above, determine the r.m.s current

  Options:
  A) 31A
  B) 48A
  C) 60A
  D) 80A
  Show Answer
  The correct answer is B .
• Question 299: The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The portion will therefore form a Options:
  A) concave mirror of focal length 5cm
  B) concave mirror of focal length 10cm
  C) convex mirror of focal length 5cm
  D) convex mirror of focal length 20cm
  Show Answer
  The correct answer is A .
• Question 300: One of the following readings represents the measurement of the length of a metal rod using vernier callipers, Taking the reading accuracy into consideration, the most likely one is Options:
  A) 5.15cm
  B) 5.165cm
  C) 5.0cm
  D) 5.160cm
  E) 5cm
  Show Answer
  The correct answer is A .