JAMB and WAEC Physics questions

829 questions with answers and explanations. Tap an option to check yourself.

1. Question 561· Motion· WAEC

   A stone dropped from the top of a cliff hits the ground 3 s later. How high is the cliff? [g = 10 m/s²]

   • A15 m
   • B30 m
   • C90 m
   • D45 m

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   Answer: D. 45 m

   Explanation and discussion

2. Question 562· Motion· JAMB

   A body moving with velocity 30 m/s decelerates uniformly at 5 m/s². The distance covered before coming to rest is:

   • A90 m
   • B6 m
   • C150 m
   • D180 m

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   Answer: A. 90 m

   Explanation and discussion

3. Question 563· Motion· WAEC

   A body moving at 10 m/s accelerates uniformly at 2 m/s² for 5 s. Find its final velocity.

   • A12 m/s
   • B20 m/s
   • C15 m/s
   • D50 m/s

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   Answer: B. 20 m/s

   Explanation and discussion

4. Question 564· Motion· JAMB

   A car accelerates uniformly from rest to 20 m/s in 5 s. Its acceleration is:

   • A2 m/s²
   • B4 m/s²
   • C5 m/s²
   • D100 m/s²

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   Answer: B. 4 m/s²

   Explanation and discussion

5. Question 565· Motion· WAEC

   A body moves in a circle of radius 2 m at a speed of 4 m/s. Its centripetal acceleration is

   • A16 m/s²
   • B2 m/s²
   • C8 m/s²
   • D32 m/s²

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   Answer: C. 8 m/s²

   Explanation and discussion

6. Question 566· Optical instruments· JAMB

   Short sight is corrected with

   • Aa converging (convex) lens
   • Ba diverging (concave) lens
   • Ca plane glass
   • Da cylindrical mirror

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   Answer: B. a diverging (concave) lens

   Explanation and discussion

7. Question 567· Optical instruments· WAEC

   In a simple camera, the image is focused by

   • Achanging the aperture size
   • Bchanging the shutter speed
   • Cmoving the lens towards or away from the film
   • Dusing a mirror

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   Answer: C. moving the lens towards or away from the film

   Explanation and discussion

8. Question 568· Optical instruments· JAMB

   Long sight is corrected using

   • Aa prism
   • Ba diverging (concave) lens
   • Ca plane mirror
   • Da converging (convex) lens

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   Answer: D. a converging (convex) lens

   Explanation and discussion

9. Question 569· Optical instruments· WAEC

   In a simple camera, the image is focused on the film by

   • Achanging the aperture
   • Bmoving the lens
   • Cchanging the shutter speed
   • Dmoving the film only by hand

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   Answer: B. moving the lens

   Explanation and discussion

10. Question 570· Optical instruments· WAEC

    The image formed on the retina of the human eye is

    • Areal, inverted and diminished
    • Bvirtual and erect
    • Creal and erect
    • Dvirtual, inverted and magnified

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    Answer: A. real, inverted and diminished

    Explanation and discussion

11. Question 571· Optical instruments· JAMB

    An object is 15 cm from a converging lens of focal length 10 cm. Find the image distance.

    • A25 cm
    • B6 cm
    • C30 cm
    • D5 cm

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    Answer: C. 30 cm

    Explanation and discussion

12. Question 572· Optical instruments· WAEC

    Find the power of a diverging lens of focal length 25 cm.

    • A−0.04 D
    • B+4 D
    • C−4 D
    • D+25 D

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    Answer: C. −4 D

    Explanation and discussion

13. Question 573· Optical instruments· WAEC

    Short sight is corrected using a

    • Aconverging lens
    • Bdiverging lens
    • Cplane mirror
    • Dprism

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    Answer: B. diverging lens

    Explanation and discussion

14. Question 574· Optical instruments· JAMB

    The image formed on the film or sensor of a camera is

    • Areal, upright and magnified
    • Bvirtual, upright and magnified
    • Creal, inverted and diminished
    • Dvirtual, inverted and diminished

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    Answer: C. real, inverted and diminished

    Explanation and discussion

15. Question 575· Optical instruments· JAMB

    The final image seen through an astronomical telescope in normal adjustment is

    • Ainverted
    • Bupright and diminished
    • Creal
    • Dthe same size as the object

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    Answer: A. inverted

    Explanation and discussion

16. Question 576· Optical instruments· WAEC

    An object is placed 20 cm from a converging lens of focal length 10 cm. The image is formed at a distance of

    • A20 cm
    • B10 cm
    • C6.7 cm
    • D30 cm

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    Answer: A. 20 cm

    Explanation and discussion

17. Question 577· Optical instruments· JAMB

    The final image formed by a compound microscope is

    • Areal, upright and diminished
    • Bvirtual, inverted and magnified
    • Cvirtual, upright and diminished
    • Dreal, inverted and the same size

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    Answer: B. virtual, inverted and magnified

    Explanation and discussion

18. Question 578· Optical instruments· JAMB

    A diverging lens has a focal length of 50 cm. Its power is

    • A+50 D
    • B+2 D
    • C−0.02 D
    • D−2 D

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    Answer: D. −2 D

    Explanation and discussion

19. Question 579· Optical instruments· JAMB

    In the camera, the part that controls the amount of light entering, like the iris of the eye, is the

    • Alens
    • Bfilm
    • Cdiaphragm (aperture)
    • Dshutter button

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    Answer: C. diaphragm (aperture)

    Explanation and discussion

20. Question 580· Optical instruments· WAEC

    Short-sightedness is corrected with a

    • Adiverging lens
    • Bconverging lens
    • Cplane mirror
    • Dprism

    Show answer

    Answer: A. diverging lens

    Explanation and discussion