What is time taken for the ear to become fully dilated after ear unit has been placed?
(a) 5-10 min
(b) 10-15 min
(c) 15-20 min
(d) 20-25 min
The question was posed to me in a national level competition.
My query is from Vectorcardiography (VCG) in chapter Biomedical Recorders of Biomedical Instrumentation