Q.:-
A clock with a mettalic pendulum is 5 seconds fast each day at a temp. of T1=15oC and 10 seconds slow at a temperature of T1=30oC. the coeffcient of the pendulum
of thermal expansion of the pendulum metal is...

(A)2.3*10-3/oC
(B)2.3*10-4/oC
(C)2.3*10-5/oC
(D)2.3*10-6/oC
Requirement:- Answer with full solution
Awards:- A 5 nickel salute.
Thank you......