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JAMB and WAEC Physics questions: Optical instruments

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

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  1. Question 21· Optical instruments· JAMB

    To use a converging lens as a magnifying glass, the object must be placed

    Explanation and discussion

  2. Question 22· Optical instruments· JAMB

    An object is placed 60 cm from a converging lens of focal length 20 cm. Find the image distance.

    Explanation and discussion

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