Question

The coefficient of cubical expansion is 7.2×10-⁶/⁰C. Find the coefficient of superficial expansion.

Answer 1

Answer:

Coefficient of given,

Superficial expansion β=20×10  

−5

/  

0

C

We know that,

6α=3β=2γ

Where α is linear expansion coefficient.

∴6×2×10  

−5

=3β

⇒β=2×2×10  

−5

 

=4×10  

−5

/  

0

C

​

Explanation: