A flute having an open air column at both ends has a second overtone with a frequency of 1,700 Hz. If the speed of sound in air is 340 m/s, what is the length of the flute?
A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
E. 30 cm
Answer: E. 30 cm
DISCUSSION
Let’s recall the formula for finding frequency of the second overtone on an open organ pipe.
where:
f = frequency of the top note of both organ pipes breaking (Hz)
v = speed of sound (m/s)
L = length of open organ pipe (m)
Okay let’s use this formula to solve the problem.
Is known :
second overtone frequency = f = 1700 Hz
speed of sound = v = 340 m/s
Asked:
length of organ pipe = L = ?
Solution:
Conclusion:
Line length close to 0,3 meter 30 cm
Disclaimer : This is a discussion of the answer key to the question A flute that has an open air column at both ends has a second overtone with a frequency of 1,700 Hz. If the speed of sound in air is 340 m/s, the length of the flute is the reference for parents to help their children learn.
The answers to these questions may not be absolutely correct, so parents and students can develop them into better and correct answers. by looking for answers from school books according to the curriculum published by the Indonesian government.
–
