Auniform meter stick of mass $m$ has a half-filled can of fruit juice of mass $m$ attached to one end. the meter stick and the can balance at a point 21.2 cm from the end of the stick where the can is attached. when the balanced stick-can system is suspended from a scale, the reading on the scale is 2.58 n. calculate the mass of the meter stick.

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.