Question

which of the following is the smallest one in magnitude and why ?
a)one meter
b)one mm
c)one fermi
d) one angstrom ​

Answer 1

Answer:

Explanation:

One mm is the correct ans....

Answer 2

Answer:

One fermi is the smallest unit in the magnitude of the following given units. It can be converted into the unit metre by the relation- 1 fermi = 10⁻¹⁵ m.

Explanation:

• The SI unit of length is metre. The metric system and the International Systems of Units both use the metre (m), also spelt as meter, as the basic unit of length (SI). In the British Imperial and American Customary systems, it is equivalent to roughly 39.37 inches.
• One mm is the abbreviated form of a millimetre. One-thousandth of a metre, the SI base unit of length, is equal to one millimetre, or millimetre, in the metric system of measurement. As a result, a metre is made up of 1000 millimetres. It can be converted to m by the relation- 1 mm = 10⁻³ m
• The femtometre, symbol fm, is a SI unit of length, or a quadrillionth of a metre. It is formed from the Danish and Norwegian word femten, meaning "fifteen," and the Ancient Greek letter o, romanized as "metrn," which means "unit of measuring." It can be converted into m by the relation- 1 fm = 10⁻¹⁵ m.
• The angstrom, sometimes known as a ngström, is a metric length unit of one ten-billionth of a metre, one hundred millionths of a centimetre, one nanometer, or one hundred picometres. The Swedish alphabet letter serves as its symbol. The Swedish physicist Anders Jonas Ngström is commemorated by the unit's name. It can be converted into m by the relation- 1A° = 10⁻¹⁰ m
• From the above relations, we can understand that the smallest unit in magnitude is fermi since it is 10⁻¹⁵ m.

Thus, One fermi is the smallest one in the magnitude of the following given units. It can be converted into the unit metre by the relation, 1 fermi = 10⁻¹⁵ m.

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