Question

Write the steps which should be taken before selecting a unit of a physical quantity.

ICSE Class 9 Physics Chapter Measurements and Experimentation

Answer 1

The steps which should be taken before selecting a unit of a physical quantity are:-
i) The unit should be of convenient size
ii) It should be possible to define the unit without ambiguity.
iii) The unit should be reproducible
iv) The value of unit should not change with space and time