Which list correctly arranges the four fundamental forces in order from strongest to weakest? O A. Electromagnetic force Gravitational force Weak nuclear force Strong nuclear force O B. Weak nuclear force Gravitational force Electromagnetic force Strong nuclear force O C. Gravitational force Weak nuclear force Electromagnetic force Strong nuclear force O D. Strong nuclear force Electromagnetic force Weak nuclear force Gravitational force

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.