Physics
Which of the following is the smallest unit?
- Millimetre
- Angstrom
- Fermi
- Metre
Measurements
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Answer
Fermi
Reason — Fermi is 10-15th part of a metre. i.e., 1 fermi = 10-15 m, hence it is the smallest unit.
Angstrom = 10-10th part of a metre.
Millimetre = 10-3th part of a metre.
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