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प्रश्न
Unlike displacement, path length is described as a scalar quantity. What does this mean?
विकल्प
It's zero in a round trip
It has magnitude but no direction
It has magnitude and direction
It can be negative
MCQ
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उत्तर
It has magnitude but no direction
Explanation:
Scalar quantities are defined by their magnitude (size or amount) only, which is true for path length.
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