What if the frequency is now increased to f = 69 hz, and we want to keep the impedance unchanged? (a) what new resistance should we use to achieve this goal? r = ω (b) what is the phase angle (in degrees) between the current and the voltage now? ϕ = ° (c) find the maximum voltages across each element.

just took the test its not "d"

answer: the correct answer for the fill in the blank is rods.

rods are the specialized photoreceptor cells that are present in the retina of human eye. they are responsible for vision in the night time ( also called scotopic vision). they have very low visual acuity and color distinguishing ability.

as they are responsible for vision in night time, therefore they are found predominantly in the nocturnal animals.