The following are true about critical fusion frequency:
a. it refers to the rate at which stimuli can be presented and still be perceived as separate stimuli
b. it is dependent on visual acuity
c. it is dependent on the spacing between neighbouring photoreceptors
d. it depends on the time-resolving ability of the eye
a. it refers to the rate at which stimuli can be presented and still be perceived as separate stimuli
b. it is dependent on visual acuity
c. it is dependent on the spacing between neighbouring photoreceptors
d. it depends on the time-resolving ability of the eye