Question

which of the following is the smallest unit of meauserment ?​

Answer 1

Answer:

Metre is the SI unit of length. So, fermi is the smallest unit.

Answer 2

Answer:

The smallest possible size for anything in the universe is the Planck Length, which is 1.6 x10-35 m across.

Explanation:

Equivalent to around a millionth of a billionth of a billionth of a billionth of a cm across (a decimal point followed by thirty four zeroes and a one), this is the scale at which the quantum foam is believed to exist: the laws of quantum physics cause minute wormholes to open and close constantly, giving space a rapidly-changing, foam-like structure.