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 331: A pencil is placed vertically between a concave mirror and its focal point. The image of the pencil in the mirror will be Options:
  A) real, inverted and diminished
  B) virtual, inverted and enlarged
  C) real, erect and enlarged
  D) virtual, erect and enlarged
  Show Answer
  The correct answer is D .
• Question 332: A solid weigh 10 .00 N in air, 6 N when fully immersed in water and 7 . 0 N when fully immersed in a liquid X. Calculate the relative density of the liquid, X. Options:
  A) 5/3
  B) 4/3
  C) 3/4
  D) 7/10
  Show Answer
  The correct answer is C .
• Question 333: Two bodies X and Y are projected on the same horizontal plane, with the same initial speed but at angles 30 and 60 respectively to the horizontal. Neglecting air resistance, the ratio of the range of X to that of Y is Options:
  A) 1:1
  B) 1:2
  C) √3:1
  D) √3
  Show Answer
  The correct answer is A .
• Question 334:

  Which of the following statements about defects of vision is/are CORRECT?

  I. Fora long sighted person, close objects appear blurred

  II. For a short sighted person, distant objects appear blurred

  III. Short sight is corrected by using a pair of converging lenses

  Options:
  A) I only
  B) II only
  C) I and II only
  D) II and III only
  Show Answer
  The correct answer is C .
• Question 335: A stone of mass m kg is held h meters above the floor for 50s. The work done in joules over this period is Options:
  A) mh
  B) mgh
  C) $\frac{mgh}{50}$
  D) O
  Show Answer
  The correct answer is D .
• Question 336: A body rolls down a slope from a height of 100m. its velocity at the foot of the slope is 20ms^-1. What percentage of its initial potential energy is converted into kinetic energy? [g = 10ms^-1] Options:
  A) 40%
  B) 35%
  C) 20%
  D) 15%
  Show Answer
  The correct answer is C .
• Question 337: A simple pendulum with a period of 2.0s has its length doubled. Its new period is Options:
  A) 1.00s
  B) 1.41s
  C) 0.3s
  D) 2.83s
  E) 4.00s
  Show Answer
  The correct answer is D .
• Question 338: Light of energy 5eV falls on a metal of work function 3eV and electrons are liberated. The stopping potential is Options:
  A) 1.7V
  B) 2.0V
  C) 8.0V
  D) 15.0V
  Show Answer
  The correct answer is B .
• Question 339:

  A ray of light passes through the centre of curvature of a concave mirror and strikes the mirror. At what angle is the ray reflected?

  Options:
  A) 180${}^o$
  B) 90${}^o$
  C) 0${}^o$
  D) 60${}^o$
  Show Answer
  The correct answer is C .
• Question 340: Which of the following statements is CORRECT about a long-sighted boy who does not put on glasses? Options:
  A) He cannot see distant objects clearly
  B) Rays of light from a close object are focused in front of his retina
  C) His eye ball is too long
  D) Parallel rays of light are focused behind his retina
  Show Answer
  The correct answer is D .