Search SchoolNGR

Thursday, 02 April 2026
Register . Login

A pipe of length 45cm is closed at the end. Calculate the fundamental frequency of the ...

A pipe of length 45cm is closed at the end. Calculate the fundamental frequency of the sound wave generated in the pipe if the velocity of sound in air is 360ms-1 [Neglect end correction]
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 5.5Hz
  • B 148.5Hz
  • C 200.0Hz
  • D 550.0Hz
Correct Answer: Option C
Explanation:
\(\lambda\) = 4L = 4 X 45 = 180cm
F = \(\frac {V}{\lambda}\)
= \(\frac {360}{180 \times 10^{-2}}\)
= 200Hz

Share question on: