Answer:
Frequency will not change.
Explanation:
As you know, Time period 'T' = 2π x √(L/g)
where,
L= the length of the pendulum
g= acceleration due to gravity
and Frequency 'f' is the reciprocal of period.f=1/T
From above, we can conclude that frequency is not dependent on mass.
It depends upon the acceleration due to gravity 'g' and the length of the pendulum 'L'
So, if a hole in the ball allowed water to slowly leak out, frequency would not change
