Question

What are the rules that must be kept in mind before using the S.I. units?
tell only correct answer​

Answer 1

Answer:

The units named after scientists are not written with a capital initial letter. ...

The symbols of the units named after scientist should be written by a capital letter. ...

Small letters are used as symbols for units not derived from a proper name.

Answer 2

Answer:

In writing, the names of SI units are always written in lowercase. However, the symbols of units named after a person are capitalized (e.g., ampere and A). These symbols are not abbreviations, so periods are not required.

Explanation:

• The units named after scientists are not written with a capital initial letter.
• The symbols of the units named after scientist should be written by a capital letter.
• Small letters are used as symbols for units not derived from a proper name