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 691:
  

  Name the type of equilibrium for each position of the ball

  Options:
  A) A - unstable, B - neutral, C - stable
  B) A - stable, B - neutral, C - unstable
  C) A - stable, B - unstable, C - neutral
  D) A - unstable, B - stable, C - neutral
  Show Answer
  The correct answer is D .
• Question 692: Which of the following is a fundamental unit? Options:
  A) Newton
  B) Watt
  C) Joule
  D) Second
  Show Answer
  The correct answer is D .
• Question 693: If the mechanical advantage of a machine is 4. What is its ratio for LOAD to EFFORT? Options:
  A) 4:01
  B) 1:04
  C) 5:01
  D) 2:01
  Show Answer
  The correct answer is A .
• Question 694:

  The pressure of two moles of an ideal gas at a temperature of 27^oC and volume 10^-2m³ is

  [R = 8.313 J mol^-1K^-1]

  Options:
  A) 4.99 x 10⁵ Nm^-2
  B) 9.80 x 10³ Nm^-2
  C) 4.98 x 10³ Nm^-2
  D) 9.80 x 10⁵ Nm^-2
  Show Answer
  The correct answer is A .
• Question 695: Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V. Options:
  A) 0.02 J
  B) 0.10 J
  C) 0.20 J
  D) 1.00 J
  E) 10.00 J
  Show Answer
  The correct answer is E .
• Question 696: A good calorimeter should be of Options:
  A) low specific heat capacity and low heat conductivity
  B) low specific heat capacity and high heat conductivity
  C) high specific heat capacity and low heat conductivity
  D) high specific heat capacity and low heat conductivity
  E) dull surface and low heat conductivity
  Show Answer
  The correct answer is B .
• Question 697: The eclipse of the sun occurs when the Options:
  A) moon is between the sun and the earth
  B) earth is between the sun and the moon
  C) moon is not completely hidden in the earth's shadow
  D) moon's umbra falls on some part of the earth
  Show Answer
  The correct answer is A .
• Question 698: 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 699: Ripples on water and light waves are similar because both Options:
  A) have the same frequency
  B) can be refracted and diffracted
  C) are longitudinal waves
  D) have the same velocity
  Show Answer
  The correct answer is C .
• Question 700:

  If in a simple pendulum experiment the length of the inextensible string is increased by a factor offour, its period is increased by a factor of?

  Options:
  A) 4
  B) $\frac{\pi }{2}$
  C) $\frac{1}{4}$
  D) 2
  Show Answer
  The correct answer is D .