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 851: in a series R-L-C circuit at resonance, the voltages across the resistor and the inductor are 30V and 40V respectively, what is the voltage across the capacitor? Options:
  A) 30V
  B) 40V
  C) 50V
  D) 70V
  Show Answer
  The correct answer is B .
• Question 852: What is the least possible error encountered when taking measurement with a meter rule? Options:
  A) 0.1mm
  B) 1.0mm
  C) 0.5mm
  D) 0.2mm
  Show Answer
  The correct answer is C .
• Question 853: Hot water is added to three times its mass of water at 10^oC and the resultant temperature is 20^oC. What is the initial temperature of the hot water? Options:
  A) 100^oC
  B) 80^oC
  C) 50^oC
  D) 40^oC
  Show Answer
  The correct answer is C .
• Question 854: The force of repulsion between two point positive charges 5$\mu$C and 8$\mu$C separated at a distance of 0.02 map art is. [$\frac{1}{4\pi {\epsilon }_o}$ = 9 x 10⁹Nm²C^-2] Options:
  A) 1.8 x 10^-10N
  B) 9.0 x 10^-8N
  C) 9.0 x 10²N
  D) 4.5 x 10³N
  Show Answer
  The correct answer is C .
• Question 855: The colours seen on soap bubbles are due to Options:
  A) Diffraction
  B) Refraction
  C) Dispersion
  D) Interference
  Show Answer
  The correct answer is D .
• Question 856:

  

  Which of the following figures gives the correct resultant R of two vectors P and Q?

  Options:
  A) I
  B) II
  C) III
  D) IV
  E) V
  Show Answer
  The correct answer is D .
• Question 857: Two tuning forks of frequency 256Hz and 260Hz are sounded close to each other. What is the frequency of the beats produced? Options:
  A) 2Hz
  B) 4Hz
  C) 8Hz
  D) 258Hz
  Show Answer
  The correct answer is B .
• Question 858:

  The density of 400cm³ of palm oil was 0.9gcm^-3 before frying. If the density of the oil was 0.6gcm^-3 after frying, assuming no loss of oil due to spilling, its new volume was?

  Options:
  A) 1360cm${}^3$
  B) 600cm${}^3$
  C) 240cm${}^3$
  D) 8000m${}^3$
  Show Answer
  The correct answer is B .
• Question 859:

  The near point of a patient's eye is 50.0 cm. What power (in diopters) must a corrective lens have to enable the eye to see clearly an object 25.0 cm away?

  Options:
  A) 2 diopters
  B) 2.5 diopters
  C) 0.5 diopters
  D) 3 diopters
  Show Answer
  The correct answer is A .
• Question 860: A train with an initial velocity of 20ms^-1 is subjected to a uniform deceleration of 2m^-2. The time required to bring the train to a complete halt is? Options:
  A) 5s
  B) 10s
  C) 20s
  D) 40s
  Show Answer
  The correct answer is B .