Question

12-Frequency of action potential: a- Increases with the increase of the intensity of stimulation b- Is zero when the intensity of stimulation is ineffective c- Is the number of action potentials during a certain time d- a & c e- All of the above

Answer 1

Answer= e- All of the above

Reason- this is because statement 'a' is correct as the increase in the stimulus doesn't cause a bigger action potential but results in more number of action potentials i.e increase in frequency.

Statement 'b' is correct as the frequency becomes zero when the intensity of stimulus is ineffective; this means that there stimulus applied is less than the threshold stimulus needed to cause an action potential.

Statement 'c' is the actual definition of the term "frequency ".