Ask Question
24 July, 19:24

A tube with a cap on one end, but open at the other end, produces a standing wave whose fundamental frequency is 130.8 Hz. The speed of sound is 343 m/s. a. If the cap is removed, what is the new fundamental frequency?

+3
Answers (1)
  1. 24 July, 21:23
    0
    A. 261.6 hz.

    B. 0.656 m.

    Explanation:

    A.

    When yhe tube is open at one end and closed at the other,

    F1 = V/4*L

    Where,

    F1 = fundamental frequency

    V = velocity

    L = length of the tube

    When the tube is open at both ends,

    F'1 = V/2*L

    Where

    F'1 = the new fundamental frequency

    Therefore,

    V/2*L x V/4*L

    F'1 = 2 * F1

    = 2 * 130.8

    = 261.6 hz.

    B.

    F1 = V/4*L

    Or

    F'1 = V/2*L

    Given:

    V = 343 m/s

    F1 = 130.8

    L = 343 / (4 * 130.8)

    = 0.656 m.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A tube with a cap on one end, but open at the other end, produces a standing wave whose fundamental frequency is 130.8 Hz. The speed of ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers