Which of the following frequencies could NOT be present as a ...

[Coya19@aol.com]

Which of the following frequencies could NOT be present as a standing wave in a 2m long organ pipe open at both ends? The fundamental frequency is 85 Hz.
 a. 85 Hz.
  b. 170 Hz.
  c. 255 Hz.
  d. 340 Hz.
  e. 382 Hz.

Question 2

Which of the following wavelengths could NOT be present as a standing wave in a 2 m long organ pipe open at both ends?
 a. 4 m
  b. 2 m
  c. 1 m
  d. 0.89 m
  e. 0.5 m

[frankwu0507]

Answer to Question 1

E

Answer to Question 2

D

[Coya19@aol.com]

TYSM

[Kedrick2014]

Thanks for the timely response, appreciate it