If refractory period of nerve is 1/2500th of a second, what can be the maximum frequency of excitation of the nerve?
100 times/sec
250 times/sec
2000 times/sec
2500 times/sec
Refractory period is that time period after the first stimulus during which the nerve is "refractory" to another stimulus. Hence, maximum frequency of excitation can be 2500 times in a second, as each next stimulus can excite the nerve if applied immediately at the end of the refractory period (1/2500th of a second).
Nerve