Fundamental and Derived Units

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Fundamental and Derived Units: Overview

This topic covers concepts, such as, Physical Quantity, Fundamental and Derived Quantities, Plane Angle & Solid Angle etc.

Important Questions on Fundamental and Derived Units

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Which of the following pairs of physical quantities have the same dimension?

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Why length, mass and time are chosen as base quantities in mechanics?

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Write the fundamental unit of amount of substance.

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Write the fundamental unit of electric current.

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Select the derived unit from the options.

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Select the fundamental unit from the options.

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Select the derived quantity from the options.

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Select the fundamental quantity from the options.

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According to metric system, how many fundamental units are there?

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Name the SI unit of solid angle.

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Units which are expressed in terms of fundamental units or those units which are dependent on fundamental units are called _____ (standard / derived) units.

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Which of the following set cannot be selected as fundamental quantities

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We would like to find a relation between mass of black hole and the area of its event horizon A. This area depends on the mass of black hole, speed of light and universal gravitational constant. We write it as A=Gαcβmγ. Then the value of α+β-γ is

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Quantities other than base quantities are called as

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Select the scalar quantity:

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Among the following statements, which one is wrong ?

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Which of the following can be unit of measure of Erg-m-1?

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Identify the option which represents the unit volt.

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Which of the following options correctly represents the unit of potential energy?