A clock with an iron pendulum keeps correct time at 20^(@)C. How much will it lose or gain per day if cubical expansion of iron =36xx10^(-6).^(@)C^(-1) .

A clock with an iron pendulum keeps correct time at 20^(@)C. How much

1.	A clock with an iron pendulum keeps correct time at 20^(@)C. How much will it lose or gain per day if cubical expansion of iron =36xx10^(-6).^(@)C^(-1) .
Answer» SOLUTION :`Delta L=L alpha Delta T` `Delta T=(Delta L)/(Lalpha)=(5xx10^(-4))/(1xx1.32xx10^(-5))=37.8^(@)C`