Of the numbers 0.0034 m, 45.6 m, and 1234 m, which is the most precise?
0.0034 m
45.6 m
1234 m
none

The most precise is 0.0034 m ⇒ 1st answer

Explanation:

Lets revise the meaning of precise

Precision is referred as the closeness of two measurements to one

another.

Highest number with significant digit is the most precise

Ex: Highest significant of optical instrument is the Wavelength of visible (red)

light = 0.00006 cm

Hence the most precise device for measuring length is the given optical

instrument

The difference between accuracy and precise

Accuracy is how close a value is to its true value

Precision is how repeatable a measurement is

We have three numbers

0.0034 m, 45.6 m, and 1234 m

The least precise is 1234 m

The most precise is 0.0034 m

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.