Question

What is S.I. system of units? Explain its need.ORWrite a short note on S.I. units.

Answer 1

HEY!!!
SI STANDS FOR SYSTEM OF INTERNATIONAL. SI UNIT IS VALID AT INTERNATIONAL LEVEL. SO, SI UNIT IS VERY IMPORTANT.
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HOPE IT HELPS.
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Answer 2

S. I. system of units means standerd international system of units.
As we know, in many countries system of units is different. So, to measure physical quantities in single unit S. I. system is used.
In this system we study quantities in a standerd unit so that no one have any confusion in understanding the system.