The handspan is not a standard unit of measuring length. Unlike millimeters, centimeters, and kilometers, which are part of the metric system and universally accepted, the handspan varies between individuals and lacks consistent measurement criteria.
Which of the following is not a standard unit of measuring length? (i) millimetre (ii) centimetre (iii) kilometre (iv) handspan
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Among the options provided, the handspan is not a standard unit of measuring length. The millimeter, centimeter, and kilometer are all part of the metric system, widely used and accepted for scientific and everyday measurements. In contrast, the handspan varies from person to person, making it an inconsistent measure. While handspans can be used informally to estimate distances, they lack the precision and uniformity of standard units. Thus, for accurate measurements, relying on metric units is essential in various contexts, including education, engineering, and everyday life.
For more CBSE Class 6 Science Curiosity Chapter 5 Measurement of Length and Motion Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions-class-6-science-curiosity-chapter-5/