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 971: When the vapour of a substance is in equilibrium with its own liquid, it is said to be Options:
  A) gaseous
  B) unsaturated
  C) liquefied
  D) diffused
  E) saturated
  Show Answer
  The correct answer is E .
• Question 972:

  

  What is the total resistance in the above diagram

  Options:
  A) 5 ohms
  B) 15 ohms
  C) 25 ohms
  D) 35 ohms
  E) 45 ohms
  Show Answer
  The correct answer is C .
• Question 973: The charge carriers in gasses are Options:
  A) ions only
  B) electrons and ions
  C) electrons and holes
  D) electrons only
  Show Answer
  The correct answer is A .
• Question 974: A Motor Tyre is inflated to pressure of 2.0 x 10⁵Nm^-2 when the temperature of air is 27^oC. What will be the pressure in it at 87^oC assuming that the volume of the Tyre does not change? Options:
  A) 2.6 x 10⁵Nm^-2
  B) 2.4 x 10⁵Nm^-2
  C) 2.2 x 10⁵Nm^-2
  D) 1.3 x 10⁵Nm^-2
  Show Answer
  The correct answer is B .
• Question 975:

  Which of the following statements about radioactivity is true?

  (i) Alpha particle is positively charged

  (ii)Beta particle is negativelycharged

  (iii) Gamma ray is neutral

  (iv) Beta particle has thesame massas helium atom

  (v) Gamma ray is charged.

  Options:
  A) i, ii, iii, iv only
  B) i, ii, iii only
  C) iv and v only
  D) i, ii and v only
  Show Answer
  The correct answer is B .
• Question 976: An air bubble rises from the bottom to the top of a water dam which is 40m deep. The volume of the bubble just below the surface is 2.5cm³. Find its volume at the bottom of the dam, if atmospheric pressure is equivalent to 10m water Options:
  A) 0.0cm³
  B) 2.0cm³
  C) 1.6cm³
  D) 0.625cm³
  E) 0.5cm³
  Show Answer
  The correct answer is E .
• Question 977: 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 978: Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is formed by the actual converging of rays of light Options:
  A) i, ii and iii
  B) i, ii and iv only
  C) i and ii only
  D) i and ii only
  E) all four statements
  Show Answer
  The correct answer is B .
• Question 979: The magnitude of the angle of dip at the equator is Options:
  A) 360^o
  B) 0^o
  C) 90^o
  D) 180^o
  Show Answer
  The correct answer is B .
• Question 980: Natural radioactivity is the random spontaneous disintegration of the nuclei of heavy isotopes of certain elements with the emission of Options:
  A) $\alpha$, X, and $\beta$
  B) $\alpha$, $\beta$ and $\gamma$-rays
  C) X, $\alpha$, $\gamma$-ray
  D) $\alpha$, $\beta$ and X-rays
  Show Answer
  The correct answer is B .