Question

the pendulum of a clock is made of brass whose linear expansitivity is 1.9×10^-5 .If the clock keeps correct time at 15 degree celsius ,how many seconds per day will it lose at 20degree Celsius​

Answer 1

Answer:

T=1/2*linear expansivity *temp diff*86400

=1/2*1.9*10^-5*5*86400

=4.1