Question

While defining the standard of length, temperature is to be specified at which measurement are to be made. Is it correct to call the length as a fundamental quantity when another physical quantity (I.e. temperature) has to be mentioned in selecting a standard?

Answer 1

Answer:

Yes, it needs to be mentioned here that length,even though dependent on temperature is a physical quantity.

Explanation:

Temperature is a physical property of matter that quantitatively expresses hot and cold. It is the manifestation of thermal energy, present in all matter, which is the source of the occurrence of heat, a flow of energy, when a body is in contact with another that is colder.

So when temperature rises the standard of length expands, making it sensible that both temperature and length are dependent.