What is the frequency of the second hand of a clock, assuming it is keeping correct time?

Select one:
a. 1 Hz
b. π/3 Hz
c. 0.0167 Hz
d. 60 Hz

3 answers

Second hand = 1 rpm:
1/60 rps; i.e. 1/60 cycle/s; i.e. 1/60 Hz
1 Hz A.
The second hand is the minutes hand. 1 revolution is = to one min so 60 seconds. Frequency is equal to 1/T where T is the period, in other word the time it takes to make one full revolution. so f= 1/60 = 0.0167