Question

do coefficient of expansion differ when length is measured in CGS or SI​

Answer 1

Answer:

yes

Explanation:

Coefficient of (linear)expansion is the ratio of change in dimension (length, area or volume) with per degree in temperature.

So, if you change the unit system, the difference in length i.e. dL, will change in both cases. For example, if the object expanded from 4m to 5m, dL is 1 and if we change the unit system to cgs dL will become 100.

So, according to formula, dL/dT, coefficient will change because the unit of temperature is still kelvin.