Answer to Question #2284 in Mechanics | Relativity for niti D
You have two strings of different linear densities tied together and stretched end-to-end between a pair of supports. What happens to the speed of a wave that passes from the more dense string to the less dense one? does the speed increase, decrease, or no change(not change at all)?
As the speed of the wave depends on the linear density as v ~ 1/√(linear density), it will increase passing from the more dense string to the less dense one.