The formula for count rate v is v nt where n is the number

The formula for \"count rate\" (v) is v = n/t (where n is the number of events counted and t is the time interval).

An experiment counts events at an average rate of 1000 events per second (or 1000 Hz). If a student wants to count an average of 50 events per sample, how long should the sample time be?

Solution

Count rate v = n/t

Given v = 1000 events per second

n = 50 events

==> 1000 = 50/t

==> t = 50/1000

==> t = 0.05

Hence the sample time should be 50 milli seconds.