The board has a mass of 2.19 kg and is 2.21 m long. The mass of cup 1 is 0.227 kg and it is placed 1.17 to the left of the balance point (at the left end of the board). The mass of cup 2 is 0.431 kg. (a) Where is cup 2 placed relative to the balance point if the board is balanced?

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.