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 751: A certain radioisotope of ${}_{92}^{235}U$ emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are Options:
  A) 219 and 87
  B) 84 and 223
  C) 223 and 87
  D) 219 and 81
  Show Answer
  The correct answer is A .
• Question 752: A trough 12.0cm deep is filled with water of refractive index $\frac{4}{3}$. By how much would a coin at the bottom of the trough appear to be displaced when viewed vertically from above the water surface? Options:
  A) 3.0cm
  B) 6.0cm
  C) 9.0cm
  D) 16.0cm
  Show Answer
  The correct answer is A .
• Question 753: Alternating current can induce voltage because it has a Options:
  A) ripple value
  B) varying magnetic field
  C) weaker magnetic field than direct current
  D) stonger magnetic field than direct current
  E) high peak value
  Show Answer
  The correct answer is D .
• Question 754:

  If a source of solid is moving, a stationary listener will hear a sound of different frequency. This is called?

  Options:
  A) doppler effect
  B) resonance
  C) ultra sound
  D) rarefaction
  Show Answer
  The correct answer is A .
• Question 755:

  The following are parts of the eye

  I. Retina

  II. Pupil

  III. Iris

  The correct equivalent in the camera in the same order are

  Options:
  A) Diaphragm, Aperture, film
  B) Aperture, Diaphragm, Film
  C) Film, Diaphragm, Aperture
  D) Film, Aperture, Diaphragm
  Show Answer
  The correct answer is D .
• Question 756:

  The resultant capacitance in the figure above is

  Options:
  A) 0.4μf
  B) 0.8μf
  C) 1.8μf
  D) 4.5μf
  Show Answer
  The correct answer is B .
• Question 757:

  

  The value of T in the figure above is

  Options:
  A) 10.0N
  B) 11.8N
  C) 20.0N
  D) 40.0N
  Show Answer
  The correct answer is C .
• Question 758:

  

  The diagram above shows a meter bridge in which two of thee arms contain resistances R and 2Ω. A balance point is obtained at 60cm from the left end , calculate the value of R

  Options:
  A) 1.2Ω
  B) 1.3Ω
  C) 3.0Ω
  D) 6.0Ω
  Show Answer
  The correct answer is C .
• Question 759:

  ²³₁₁Na + Proton → ^p_qX + alpha particle

  What are the values of p and q respectively in the equation above?

  Options:
  A) 10 and 20
  B) 12 and 24
  C) 20 and 10
  D) 24 and 12
  Show Answer
  The correct answer is C .
• Question 760:

  The slope of the straight line displacement-time graph indicates?

  Options:
  A) distance traveled
  B) uniform velocity
  C) uniform acceleration
  D) uniform speed
  Show Answer
  The correct answer is B .