Question

1)define unit of physical quantity 2) define fundamental units and derived units​

Answer 1

Answer:

1) Measurement of any physical quantity involves comparison

with a certain basic, arbitrarily chosen, internationally

accepted reference standard called unit.

2) The units for the fundamental or

base quantities are called fundamental or base units. The

units of all other physical quantities can be expressed as

combinations of the base units. Such units obtained for the

derived quantities are called derived units

Explanation:

Answer 2

Answer:

Fundamental units in science like physics and chemistry are those which are derived as a measurement basis. They are seven in number like unit of length is meter and unit of weight is kg etc. Derived units are those which are derived using two fundamental units. Example : Unit of pressure is pascal, i.e N, /m^2.

Explanation:

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