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The inside portion of part of a hollow metal sphere of diameter 20cm is polished....

Physics
JAMB 1999
The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The portion will therefore form a
  • A. concave mirror of focal length 5cm
  • B. concave mirror of focal length 10cm
  • C. convex mirror of focal length 5cm
  • D. convex mirror of focal length 20cm
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Correct Answer: Option A
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995