Question 1

How is energy distributed in a stationary wave?
Energy is confined between nodes

Question 2

What is the fundamental frequency of a 1 m steel rod clamped at center?
2530 Hz

Question 3

Is the wave speed on a string dependent on frequency?
No, for non-dispersive string

Question 4

Can two sound waves cancel each other completely?
Yes, by destructive interference

Question 5

What is the principle behind echolocation in bats?
Reflection of sound waves