19. Which one of the following statements is true?
[NCERT EXEMPLAR]
(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.
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Answer:
( b ) A scalar quantity is the one that can never take negative.
Explanation:
A scalar quantity is the one that can never take negative.
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