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Physics Medium Uploaded: 09 Jul 2026

Which conversion is correct?

  • A 1 km = 100 m
  • B 1 cm = 100 mm
  • C 1 mm = 10^-3 m
  • D 1 m = 10 cm
Correct Answer: Option C — 1 mm = 10^-3 m
Explanation:
One millimetre is one thousandth of a metre, so 1 mm = 10^-3 m.
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Submitted by: PaperMCQs
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