Wave Motion 3 Question 10
10. A steel wire of length , mass and uniform cross-sectional area is rigidly fixed at both ends. The temperature of the wire is lowered by . If transverse waves are set-up by plucking the string in the middle, calculate the frequency of the fundamental mode of vibration.
Given :
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Answer:
Correct Answer: 10.
Solution:
- The temperature stress is
or tension in the steel wire Substituting the values, we have
Speed of transverse wave on the wire,
Here,
Fundamental frequency