if two scales of different material (let say steel and aluminium)are same at 20 degree does it mean that it - Physics - Thermal Properties Of Matter

Question

if two scales of different material (let say steel and
aluminium)are same at 20 degree does it mean that it will be same
at 0 degree celcius?

Debalina Deb · Accepted Answer

Solution: fro the concept of thermal expansion; We know that

so, the changed or final length depends on 1 What material you choose 2 What is the initial length of each material 3 Change is temperature So as the temperature change is same for aluminum and steel, depending on their initial lengths, the final length will be same

if two scales of different material (let say steel and aluminium)are same at 20 degree does it mean that it will be same at 0 degree celcius?