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JAMB UTME Physics 2024 past questions and answers

This 2024 JAMB UTME Physics set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2024 set with instant marking.

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Sample JAMB UTME Physics 2024 questions

1. An object is placed 30 cm in front of a converging lens of focal length 20 cm. How far from the lens is the sharp image formed?
  1. 60 cm on the opposite side
  2. 12 cm on the opposite side
  3. 60 cm on the same side
  4. 50 cm on the opposite side

Answer: A. 60 cm on the opposite side

Using 1/f = 1/u + 1/v gives 1/v = 1/20 - 1/30 = 1/60, so the real image forms 60 cm on the opposite side.

2. A ray of light strikes a plane mirror at an angle of incidence of 40 degrees. What is the angle between the incident and reflected rays?
  1. 40 degrees
  2. 80 degrees
  3. 100 degrees
  4. 140 degrees

Answer: B. 80 degrees

The angle of reflection equals the angle of incidence, so the angle between the two rays is 40 + 40 = 80 degrees.

3. A glass block has refractive index 1.50 relative to air. What is its approximate critical angle for a glass-air boundary?
  1. 30 degrees
  2. 35 degrees
  3. 42 degrees
  4. 49 degrees

Answer: C. 42 degrees

At the critical angle, sin c = 1/1.50 = 0.667, giving c approximately 41.8 degrees.

4. Light travels through a transparent liquid at 2.25 x 10^8 m/s. Taking its speed in vacuum as 3.0 x 10^8 m/s, what is the refractive index of the liquid?
  1. 0.75
  2. 1.20
  3. 1.25
  4. 1.33

Answer: D. 1.33

The refractive index is c/v = (3.0 x 10^8)/(2.25 x 10^8) = 1.33.

5. Which type of lens is used to correct short-sightedness (myopia)?
  1. A converging lens of short focal length
  2. A diverging lens
  3. A cylindrical lens only
  4. A plane glass plate

Answer: B. A diverging lens

A diverging lens spreads incoming rays so that the eye focuses the image of a distant object on the retina.

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