Which one of the following statements is true?

Moderate

A

A scalar quantity is the one that is conserved in a process.
B

A scalar quantity is the one that can never take negative values
C

A scalar quantity is the one that does not vary from one point to another in space
D

A scalar quantity has the same value for observers with different orientations of the axes

Solution

A scalar quantity has magnitude only it has no direction . Its magnitude does not depend on the orientation of axes. For example, mass of an object is 1 kg. This mass remains 1 kg for any orientation of the co-ordinate axes.

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