Question

find the fundamental of first overtone second overtone frequencies of a pipe open at both the ends of length 25 CM if the speed of sound in air is 330 M per second.

Answer 1

Given: Velocity of sound in air v=330m/s

Length of the organ pipe L=0.3m

Fundamental frequency in an open organ pipe ν

1

=

2L

v

ν

1

=

2×0.3

330

=550Hz