suppose i measure the time t for 20 oscillations fro a pendulum. the period is T.
Since T = t / 20
delta T = delta t right?
The Attempt at a Solution
since the 20 is a numerical value, it does not come in the error propagation, does not? when i used the above equation, i can't get the required answer but when i divide by 20, the answer is obtained.
can someone explain why?