(m/s) 
2G 
SPEED-OF-SOUND 
1540 
1530 
1520 
1510 
1410 
eee ( eee | a a a a | 
13.5 13.6 13.7 13.8 13.9 14.0 141 14.2 14.3 144 14.5 14.6 147 
OUTPUT FREQUENCY - f (KC) 
FIG. 2 
188 
