At locations a and b the electric potential has the values 1.75 v and 5.31 v, respectively. you release a proton from rest at one of these locations and it passes through the other one. at which location should you release the particle? what is its speed when it passes through the other location? repeat the same question, but this time using an electron instead of a proton.

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.