In: Physics
A clock pendulum, made of aluminum, has a period of 1.00 s s and is accurate at 8.0°C. If the clock is used in a climate where the temperature averages 36.0°C what correction is necessary at the end of a 40 day period to the time given by the clock?
The time period of the pendulum of the length L is
And so, if the time period for the length at L_1 = L_0 at
temperature t_1 = 8 degree C , is T_1 = 1.0 sec,
then the time period at the higher temperature t_2 = 36 degee C,
is
Then
And for aluminium, the linear expansion coefficient is given
by
And so, the time period at 36 degree C is
So, the correction to 1.0 sec is
So, the correction to 40 day period is