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T1 CH4 Atomic Structure — Science STD 7 — Question

Tamilnadu BoardEnglish MediumSTD 7ScienceT1 CH4 Atomic Structure1 Mark
MCQ
________ is the smallest unit used to measure small lengths.
  • A
    Metre
  • ✓
    Nanometre
  • C
    Millimetre
  • D
    Centimetre
✓

Answer

Correct option: B.
Nanometre
Nanometre

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