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 2291: A capacitor 8$\mu$F is charged to a potential difference of 100V. The energy stored by the capacitor is Options:
  A) 1.0 x 10⁴J
  B) 8.0 x 10J
  C) 1.25 x 10J
  D) 4.0 x 10^-2J
  Show Answer
  The correct answer is D .
• Question 2292: To keep a vehicle moving at a constant speed v, requires power P, from the engine. The force provided by the engine is Options:
  A) $\frac{p}{v}$
  B) $\frac{1}{2}$ v
  C) pv
  D) $\frac{p}{v^2}$ v
  Show Answer
  The correct answer is A .
• Question 2293: The wavelength of a wave traveling with a velocity of 420 ms^-1 is 42 m. what is its period? Options:
  A) 1.2 s
  B) 1.0 s
  C) 0.5 s
  D) 0.1 s
  Show Answer
  The correct answer is D .
• Question 2294:

  Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of the tommy bar is 23cm

  Options:
  A) 230$\pi$
  B) 23$\pi$
  C) 70$\pi$
  D) 140$\pi$
  Show Answer
  The correct answer is A .
• Question 2295: A shooter wants to fire a bullet in such a way that its horizontal range is equal to three times its maximum height. At the what angle should he fire the bullet to achieve this? Options:
  A) 68^o
  B) 53^o
  C) 30^o
  D) 45^o
  Show Answer
  The correct answer is B .
• Question 2296:

  A pool of water appears to be 1.00m deep when viewed vertically from above. What is the actual depth of the pool?

  [Refractive index of water = 1.33]

  Options:
  A) 13.300m
  B) 0.750m
  C) 1.013m
  D) 1.330m
  Show Answer
  The correct answer is D .
• Question 2297: Which of the following statements is NOT true of $\gamma$-rays? Options:
  A) $\gamma$-rays belong to the electromagnetic spectrum
  B) $\gamma$-rays do not carry an electron charge
  C) $\gamma$-rays obey the inverse cube law in air
  D) the thickness of aluminium which stops b-particule has a negligible effect on $\gamma$-radiation
  E) the difference between $\gamma$-rays and X-rays is that $\gamma$-rays originate from energy charges in the nuclei of atoms, while X-rays comes from energy charges associated with the electron structure of atoms
  Show Answer
  The correct answer is C .
• Question 2298: A particle starts from rest and moves with a constant acceleration of 0.5ms^-2. The distance covered by the particle in 10s is Options:
  A) 2.5m
  B) 5.0m
  C) 25.0m
  D) 50.0m
  Show Answer
  The correct answer is C .
• Question 2299: In the process of electrification by induction, the amount of induced charge in relation to the inducing charge is the Options:
  A) same in sign and quantity
  B) same in sign but greater
  C) opposite in sign but greater
  D) opposite in sign but less
  E) opposite in sign but equal
  Show Answer
  The correct answer is E .
• Question 2300:

  A rope is being used to pull a mass of 10kg vertically upward. Determine the tension in the rope if, starting from rest, the mass acquires a velocity of 4ms^-1 in 8s [g = 10ms^-2]

  Options:
  A) 5N
  B) 50N
  C) 95N
  D) 105N
  Show Answer
  The correct answer is C .