1) A 1.50-m long gas column that is open at one end and closed at the other has a fundamental resonant frequency 80.0 Hz. What is the sound speed in this gas?

a) 120 m/s
b) 30.0 m/s
c) 480 m/s
d) 213 m/s
e) 53.3 m/s

2) You drop a stone down a well. You hear the splash 2.23 s later. How deep is the well? The speed of sound in air is 343 m/s.

a) 6.96 m
b) 20.2 m
c) 22.9 m
d) 18.8 m
e) 20.0 m

1 answer

A 1.50-m long gas column that is open at one end and closed at the other has a fundamental resonant frequency 80.0 Hz. What is the sound speed in this gas?