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 1141: The relationship between the period T and the length T of a smile pendulum is T = 2$\pi$ $(\frac{I}{g}{)}^{\frac{1}{2}}$. From experiment data of T and I, one can obtain the following graphs, i. T vs.I ii. T vs I² iii. T² vs. I iv. T vs $\sqrt{I}$ v. logT vs logI. Which of the following graphs, are linear? Options:
  A) all
  B) only i and ii
  C) only iii and iv
  D) iii,iv and v
  E) none of them
  Show Answer
  The correct answer is D .
• Question 1142:

  

  A uniform meter rule QR is balanced on a knife edge which is 55cm from R, when a mass of 10g is hung at P as shown above, the mass of the meter rule is (Note that QP is 10cm)

  Options:
  A) 550g
  B) 350g
  C) 70g
  D) 35g
  Show Answer
  The correct answer is C .
• Question 1143: The small droplets of water that form on the grass in the early hours of the morning is Options:
  A) Fog
  B) Haul
  C) Mist
  D) Dew
  Show Answer
  The correct answer is D .
• Question 1144: The melting point of naphthalene is 78^oC. What is this temperature in kelvin Options:
  A) 100k
  B) 351k
  C) 378k
  D) 444k
  Show Answer
  The correct answer is B .
• Question 1145:
  

  In which of the following diagrams is the length of the tube equal to one wavelength?

  Options:
  A) a
  B) b
  C) c
  D) d
  Show Answer
  The correct answer is C .
• Question 1146: Mercury is suitable as a barometric fluid because it Options:
  A) expands uniformly
  B) is opaque
  C) is several times denser than water
  D) is a good conductor of heat
  Show Answer
  The correct answer is C .
• Question 1147:

  

  A body of mass 40kg is being dragged along the floor by a rope inclined at 60 degrees to the horizontal. The frictional force between the box and the floor is 100N and the tension on the rope is 300N. How much work is done by dragging the box for a distance of 4m

  Options:
  A) 680J
  B) 400J
  C) 200J
  D) 100J
  Show Answer
  The correct answer is C .
• Question 1148:

  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 1149: 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 1150: How many grams of water at 17^oC must be added to 42g of ice at 0^oC to melt the ice completely? [specific latent heat of fusion of ice = 3.4 x 10⁵Jkg^-1, specific heat capacity of water = 4200Jkg^-1k^-1] Options:
  A) 200g
  B) 300g
  C) 320g
  D) 400g
  Show Answer
  The correct answer is A .