Question
What are the rules observed while writing the unit of a physical quantity?

Answer

Rules observed while writing unit of a physical quantity :
  1. It must be of proper size. A very small or large size may cause inconvenience.
  2. It should be easily accessible
  3. It must be reproducible at all places without any difficulty.
  4. It must be accurately defined and must not change with time, place, and physical conditions such as pressure, humidity, etc.
  5. It must be widely accepted all over the world.

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