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 591: A piece of substance of specific head capacity 450JKg^-1K^-1 falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms^-2] Options:
  A) 2/9°C
  B) 4/9°C
  C) 9/4°C
  D) 9/2°C
  Show Answer
  The correct answer is B .
• Question 592: Which of the following is a derived unit? Options:
  A) Kilogramme
  B) Meter
  C) Kelvin
  D) Newton
  Show Answer
  The correct answer is D .
• Question 593:

  When the temperature of a liquid is increased, its surface tension

  Options:
  A) increases
  B) decreases
  C) remain constant
  D) increases then decreases
  Show Answer
  The correct answer is B .
• Question 594: A radioactive source emits X–rays of very short wavelength (10 ^-13m ) what is the frequently of these rays? Options:
  A) 2 × 10¹⁸HZ
  B) 3 × 10 ¹⁹HZ
  C) 3 × 10²¹HZ
  D) 3 × 10^-19HZ
  Show Answer
  The correct answer is C .
• Question 595:

  A 2H inductor has negligible resistance and is connected to a $\frac{50}{\pi }$ Hz A.C supply. The reactance of the inductor is?

  Options:
  A) 200$\mathrm{\Omega }$
  B) 50$\mathrm{\Omega }$
  C) $\frac{100}{\pi }$
  D) $\frac{25}{\pi \mathrm{\Omega }}$
  Show Answer
  The correct answer is A .
• Question 596: When a man moves toward a plane mirror at a speed of 6m/s, the distance the man and his image increased at a speed of? Options:
  A) 2 m/s
  B) 4 m/s
  C) 12 m/s
  D) 14 m/s
  Show Answer
  The correct answer is C .
• Question 597: Which of the following is a characteristics of stationary waves? Options:
  A) They are formed by two identical waves travelling in opposite directions
  B) they can be transverse or longitudinal
  C) The distance between two successive nodes is one wavelenght
  D) The antinode is a point of minimum displacement
  Show Answer
  The correct answer is A .
• Question 598:

  The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?

  Options:
  A) hyperbola
  B) parabola
  C) curve
  D) straight line
  Show Answer
  The correct answer is D .
• Question 599: Which of these statements are TRUE of pressure in liquids? i. pressure acts equally in all direction. ii. pressure decreases with depth. iii. pressure at the same level of a liquid is the same. iv pressure is dependent on the cross-sectional area of the barometer tube Options:
  A) i, iii only
  B) i, ii, iii only
  C) i, iii, and iv only
  D) i, ii, iii and iv
  Show Answer
  The correct answer is A .
• Question 600:

  

  In the diagram above, determine the r.m.s current

  Options:
  A) 31A
  B) 48A
  C) 60A
  D) 80A
  Show Answer
  The correct answer is B .