Question

1. The SI unit of distance is km.
2.
A cloth merchant uses a tape for measurement.
3. Rotating fan is an example of periodic motion,
Ruler/metre rod can be used for measurement of curved length.
5. Ancient people never used foot scale for the measurement of length.
6. Distance between starts is measured in light years.
7. Cubit was used for measurement of length.
(true or false).​

Answer 1

1. False

2. True

3. False

4. False

5. False

6. True

7. False