you a viewing a read out on an oscilloscope that shows you when different voltages in a circuit maximize. If the period of the circuit is 0.04 seconds, how much time is there between when the capacitor voltage maximizes and the inductor voltage maximizes ?

there is 0.02 sec between when the capacitor voltage maximizes and the inductor voltage maximizes

Explanation:

Given that time period T = 0.04 sec

Now as the voltage across inductor maximizes, voltage across the capacitor minimizes and vice - versa;

Now, between capacitor maximizing and Inductor maximizing, there is a time of T/2

i.e t = T/2

so from our question; Time period is 0.04sec

now

t = 0.04 / 2

t = 0.02 sec  

Therefore there is 0.02 sec between when the capacitor voltage maximizes and the inductor voltage maximizes

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.