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 291: For a best result using temperature to achieve an accurate measurement, it is best to use Options:
  A) Mercury thermometer
  B) gas thermometer
  C) clinical thermometer
  D) alcohol thermometer
  Show Answer
  The correct answer is B .
• Question 292: A plastic sphere floats in water with 50% of its volume submerged. if it floats in glycerine with 40% of its volume submerged,the density of the glycerine is? Options:
  A) 1400 kgm^-3
  B) 1250 kgm^-3
  C) 500 kgm^-3
  D) 1000 kgm^-3
  Show Answer
  The correct answer is B .
• Question 293:

  A 45^o triangular glass prism can be used as a reflector of light because

  Options:
  A) A refraction never takes place in such a prism
  B) the angle of reflection equals the angle of incidence
  C) the refractive index of glass is less than 1
  D) it is transparent
  E) the critival angle angle for glass is less than 45^o
  Show Answer
  The correct answer is E .
• Question 294: In a Daniel cell, the depolarizer, positive and negative electrodes are respectively Options:
  A) copper sulphate, copper and zinc
  B) manganese dioxide, carbon and zinc
  C) sulphuric acid, lead oxide and lead
  D) potassium hydroxide, nickel and iron.
  Show Answer
  The correct answer is A .
• Question 295: Which of these statements are correct for the pressures in liquids? i. pressure in a liquid at a point acts equally in all directions. ii. pressure increases with depth. iii. pressure at a depth depends on the shape of the container. iv. pressure at the same depth in different liquids are proportional to the density at different liquids. Options:
  A) i, ii, iii only
  B) i, ii, iv only
  C) i, iii, iv only
  D) ii, iii, iv only
  Show Answer
  The correct answer is B .
• Question 296: A car accelerate uniformly from rest at 4 ms^-2. How far will it travel in the fifth complete second? Options:
  A) 100 m
  B) 50m
  C) 32 m
  D) 18 m
  Show Answer
  The correct answer is D .
• Question 297: The frequency of beats produced when two tunning forks of frequencies 258Hz and 270Hz are sounded close to each other Options:
  A) 6Hz
  B) 264Hz
  C) 528Hz
  D) 12Hz
  Show Answer
  The correct answer is D .
• Question 298:

  

  The effect of closing the key K in the circuit shown above would be to

  Options:
  A) increase the current by 0.6A
  B) reduce the current by 0.6A
  C) increase the current by 0.4A
  D) keep the current unchanged
  Show Answer
  The correct answer is C .
• Question 299: The motion of the moving skin of a talking drum can rightly be described as Options:
  A) translational
  B) random
  C) rotational
  D) oscillatory
  E) transitory
  Show Answer
  The correct answer is D .
• Question 300:

  The height at which the atmosphere cases to exist is about 80km. If the atmospheric pressure on the ground level is 760mmHg, the pressure at a height of 20km above the ground level is

  (ρm = 13.6g/cm${}^3$ ρ = 0.00013g/cm${}^3$ )

  Options:
  A) 380mmHg
  B) 570mmHg
  C) 190mmHg
  D) 480mmHg
  Show Answer
  The correct answer is B .