Physics - Grade 12 -2023 G.C

Grade 12 students can now access their exam results by visiting the Educational Assessment and Examination Services (EAES) website.


29. A solenoid with 5000 turns and length 1m carries 15A of current. If no iron core is inserted in the solenoid, what is the magnetic field strength at the center of the solenoid?

  1. 3π×10-2 T
  2. 4π×10-2 T
  3. 20π×10-2 T
  4. 6π×10-2 T


30. Light ray is allowed to enter from air medium (nair=1) into water medium (inex of refraction nw = 4/3 ) at an angle of 30° with the normal to air-water interface (boundary). Which one of the following is correct about the ray of light?

  1. The speed of the light ray in water is 1.33 times that of its speed in air.
  2. The speed of the light ray in water is 0.9 times that of its speed in air.
  3. The sine of the angle of refraction of the light ray in water is equal to 0.5.
  4. The sine of the angle of refraction of the light ray in water is equal to 0.38.


31. A fluid travelling over an objects surface exerts less pressure than if the fluid was static. This is a statement of

  1. Pascal's principle.
  2. Archimedes' principle.
  3. Bernoulli's principle.
  4. principle of continuity.


32. Which one of the following activities of experiment is NOT necessary to determine the specific latent heat of vaporization of water?

  1. Measuring time
  2. Measuring mass
  3. Measuring temperature
  4. Measuring volume


33. Which one of the following statements is correct about critical and boiling points of a substance?

  1. The boiling point of a substance can be different based on the pressure of the surrounding whereas critical point occurs at one specific pressure and temperature.
  2. The critical temperature of a substance can be increased or decreased based on the pressure of the surrounding whereas boiling point does not vary with the pressure of the surrounding.
  3. The critical point and the boiling point of a substance occur at the same specific temperature and pressure.
  4. Both critical temperature and boiling point of a substance can be increased or decreased based on the pressure of the surrounding.


We have provided these questions from previous years grade 12 Ethiopian Secondary School Leaving Certificate Examination (ESSLCE) exams with the sole purpose of assisting students in their studies and preparations for upcoming exams. Please be aware that these questions are not indicative of future exam content. Good luck with your studies!

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