Ask Question
28 March, 04:40

8. A tuning fork vibrating with a sonometer wire 20cm long produces 5 beats per second. Given

that the beat frequency does not change if the length of the wire is changed to 21cm, calculate

the frequency of the tuning fork and frequency of sonometer wire when changed to 21cm.

+2
Answers (1)
  1. 28 March, 05:20
    0
    length of wire is proportional to frquency of sound produced by it.

    n₁ / n₂ = l₂ / l₁

    = 21 / 20

    If n be the frequency of tuning fork

    n₁ = n + 5; n₂ = n - 5 (no of beat / s = frequency difference)

    n + 5 / n - 5 = 21 / 20

    20n + 100 = 21n - 105

    n = 205 Hz

    frequency of tuning fork = 205

    the frequency of the tuning fork and frequency of sonometer wire when changed to 21cm. = n - 5 = 200 Hz.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “8. A tuning fork vibrating with a sonometer wire 20cm long produces 5 beats per second. Given that the beat frequency does not change if ...” 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