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 1561: Three cells each of e.m.f. 1.5v and an internal resistance of 1.0$\mathrm{\Omega }$ are connected in parallel across a load resistance of 2.67$\mathrm{\Omega }$. Calculate the current in the load? Options:
  A) 0.26A
  B) 0.41A
  C) 0.50A
  D) 0.79A
  Show Answer
  The correct answer is C .
• Question 1562: As the pressure of a fluid increases, its viscosity Options:
  A) decreases
  B) increases
  C) increases then decreases
  D) remains constant
  Show Answer
  The correct answer is B .
• Question 1563: A piece of iron weights 250 N in air and 200 N in a liquid of density 1000 kgm^-3. the volume of the iron is? Options:
  A) 5.0 x 10^-2 ms^-2
  B) 4.5 x 10^--2 ms^-3
  C) 2.5 x 10^-2 ms^-8
  D) 2.0 x 10^-2 ms^-3
  Show Answer
  The correct answer is C .
• Question 1564:

  If it takes 5.0 hrs to drain a container of 540.0cm³ of water, what is the flow rate of water from the container in kg^-1? [Density of water = 1000kgm^-3]

  Options:
  A) 32.5kg^-1 s
  B) 31.5kg^-1 s
  C) 30.8kg^-1 s
  D) 30.0kg^-1 s
  Show Answer
  The correct answer is D .
• Question 1565:

  

  When the sun, moon and the earth are as shown in the diagram above an observer standing in X is in

  Options:
  A) Penumbra and sees a partial eclipse
  B) Penumbra and sees a total eclipse
  C) umbra and sees a partial eclipse
  D) umbra and sees a total eclipse
  Show Answer
  The correct answer is A .
• Question 1566: The primary aim in high tension transmission is to Options:
  A) minimize electrical energy losses due to heat production
  B) increase the rate of energy transfer by using high voltage
  C) increase the current in the wire
  D) generate electricity at high current and low voltage
  Show Answer
  The correct answer is A .
• Question 1567:

  During the transformation of matter from the solid to the liquid state, the heat supplied does not produce a temperature increase because

  Options:
  A) the heat energy is quickly conducted away
  B) the heat capacity has become very large as the substance melts
  C) the heat gained is equal to the heat lost by the substance
  D) all the heat is used to break the bonds holding the molecules of the solid together
  Show Answer
  The correct answer is D .
• Question 1568: An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of the ice is 1.50, the apparent depth below the surface is Options:
  A) 2.50 cm
  B) 6.67 cm
  C) 7.50 cm
  D) 7.63 cm
  Show Answer
  The correct answer is B .
• Question 1569: Transverse waves can be distinguished from longitudinal waves using the characteristic of Options:
  A) diffraction
  B) refraction
  C) polarization
  D) reflection
  Show Answer
  The correct answer is C .
• Question 1570:

  A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

  Options:
  A) 0${}^o$ and 0${}^o$
  B) 60${}^o$ and 60${}^o$
  C) 90${}^o$ and 90${}^o$
  D) 90${}^o$ and 0${}^o$
  Show Answer
  The correct answer is D .