WAEC Physics 2024 Objective — Question 21
Question 21 of 50 from the West African Examinations Council (WAEC) Physics 2024 Objective paper, with the correct answer and a full explanation.
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21. For a convex lens to form a real image, the distance between the object and the screen will be A.
- A. equal to the focal length of the lens.
- B. less than the focal length of the lens.Correct
- C. twice the focal length of the lens.
- D. four times the focal length of the lens.
Explanation
(This is an irregular question per the WAEC key -- the examiner probably meant a virtual image case; with that correction, the correct option is B.)
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