Atest charge of -1.4 * 10-7 coulomb experience a force of 5.4 * 10^-1 newtons. calculate the magnitude of the electric field created by the negative test charge.

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.