Q.No.105: - How can we say that when wave enters from one medium to the other, then the boundary of the two media will never create or destroy the wave?

Q.No.105: - How can we say that when wave enters from one medium to the other, then the boundary of the two media will never create or destroy the wave?

Ans: - Because if it create or destroy wave then its frequency must change while the frequency before and after entering media remains same. So, we can say that boundary of media will not destroy or create the wave.