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Get Answers to all your Questions
Which of the following is not a pair of fundamental quantities
Time and mass
Length and time
Electric current and Luminous Intensity
Electric current and electric field
Answers (1)
As we learnt in
Fundamental and Derived Quantities -
1) Fundamental Quantities
Those physical quantities are independent of all other quantities and cannot be expressed in terms of other basic quantities.
These quantities are also called absolute /basic quantities.
Length, mass, time, electric current, temperature, amount of substance and luminous intensity
2) Derived Quantities
Derived Quantities are products and ratios of the fundamental quantities that exist in a system of units and these quantities can be expressed in terms of other basic quantities.
i.e. Area, Density, Force, Pressure, etc
So l= length of the square is a fundamental quantity
But the area of square=A=l2 is a derived Quantity that we get with the help of taking a square of the length.
The electric field is not a fundamental quantity.
The correct option is 4
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