What is physical quantity ? Write its types.
What is physical quantity ? Write its types.
To describe natural and man made events around us many concepts are required. These concepts are called quantity.
There are two types of unit.
$(1)$ Fundamental quantity: Minimum number of quantities which are independent of each other and by using these quantities any event can be described are called fundamental quantities.
Eg. : length, mass and time.
$(2)$ Derived quantity : Quantity which are obtained by using fundamental quantity are called derived quantity.
E.g. : velocity, acceleration, force, work, power.
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