Wave Motion 2 Question 9
9. A granite rod of length is clamped at its middle point and is set into longitudinal vibrations. The density of granite is and its Young’s modulus is . What will be the fundamental frequency of the longitudinal vibrations?
(2018 Main)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 9. (b)
Solution:
- Wave velocity
For fundamental mode,