PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!
posted by HIMAR .
a wave has a frequency of 2 Hz. find its period ?
please show work.....

P = 1/f or, in words,
Period (in seconds) = 1/Frequency (in Hz)
If there are two cycles per second, each one takes 1/2 second. That is the period. 
The period of a wave, T, is equal to 1/f. So, T = 2 seconds

Ignore Nav's answer
1/2 does not equal 2 
yea....i messed up, i meant 1/2, my bad