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 1801: A saturated vapour pressure of a liquid increases when the Options:
  A) Temperature of a liquid increases
  B) Volume of the liquid increases
  C) Volume of the liquid decreases
  D) Temperature of the liquid decreases
  Show Answer
  The correct answer is A .
• Question 1802:

  The relationship between the coefficient of linear expansion $\alpha$ and volumetric expansion ($\gamma$) is-----------------

  Options:
  A) $\gamma$ = ${\alpha }^{-3}$
  B) $\gamma$ = $\alpha$
  C) 3$\alpha$
  D) $\gamma$ = ${\alpha }^3$
  Show Answer
  The correct answer is C .
• Question 1803: The process through which free electrons leave the surface of hot metal is known as? Options:
  A) photon emission
  B) photo emission
  C) thermionic emission
  D) electron emission
  Show Answer
  The correct answer is C .
• Question 1804: A stone, Q is thrown with velocity U at an angle of 75^o to the horizontal. Another stone R is thrown with the same velocity U but with an angle of 15^o to the horizontal. The ranges covered by the stones will be Options:
  A) greater for Q
  B) greater for R
  C) the same for Q and R
  D) greater for the heavier of the two stones
  Show Answer
  The correct answer is C .
• Question 1805:

  I. All the three forces must be concurrent.

  II. The upward force is equal to the downward force.

  III. The algebraic sum of the moment about any point must be zero.which of the above conditions must hold for a body acted upon by a system of three coplanar forces equilibrium?

  Options:
  A) I and II only
  B) I and III only
  C) II and III only
  D) I, II and III
  Show Answer
  The correct answer is B .
• Question 1806: An object 3.0cm high is placed 60.0cm from a converging lens whose focal length is 20.0cm. Calculate the size of the image formed Options:
  A) 0.5cm
  B) 1.5cm
  C) 2.0cm
  D) 6.0cm
  Show Answer
  The correct answer is B .
• Question 1807:

  A person standing waist-deep in a swimming pool appears to have short legs because of light?

  Options:
  A) diffraction
  B) refraction
  C) reflection
  D) interference
  Show Answer
  The correct answer is B .
• Question 1808: The length of a simple pendulum is increased by a factor of four. By what factor is its period Increased? Options:
  A) 0.25
  B) 0.5
  C) 1.66
  D) 2
  E) 4
  Show Answer
  The correct answer is D .
• Question 1809:

  Two divers G and H are at depths 20m and 40m, respectively below the water surface in a lake. The pressure on G is p${}_1$ while the pressure on H is P${}_2$, If the atmospheric pressure is equivalent to 10mof water, then the value of P${}_2$/P${}_1$ is?

  Options:
  A) 0.50
  B) 0.60
  C) 1.67
  D) 2.00
  Show Answer
  The correct answer is C .
• Question 1810: If the uncertainty in the measurement of the position of a particle is 5.0 x 10^-10m, the uncertainty in the momentum of the particle is Options:
  A) 1.32 x 10^-44Ns
  B) 3.30 x 10^-44Ns
  C) 1.32 x 10^-24Ns
  D) 3.30 x 10^-24Ns
  Show Answer
  The correct answer is C .