An ac series circuit contains a resistor of 25 ohms, an inductor of 10.5 mh and a variable capacitor. if the frequency of the applied voltage is 190 hz, to what setting should the capacitor be set if resonance is achieved? a) 61.75μf b) 66.83 μf c) 29 μf d) 84μf e) 52.725 μf

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.