Question #6c7ad
1 Answer
Explanation:
The linear thermal expansion of an object can be expressed as
#dl = L_0 α (t_f - t_i)#
where#dl# is change in length,#L_0# is initial length,#α# is Coefficient of linear expansion of the material of the object,#t_f and t_i# are initial and final temperatures respectively.
Inserting given values and taking
New length of pendulum's wire
Time period
#T=2pisqrt(l/g)#
Where#l# is length of pendulum and#g# is acceleration due to gravity and#=9.81ms^-2#