Wave Motion 5 Question 6
6. The extension in a string, obeying Hooke’s law, is
(1996, 2M)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 6. (a)
(b)
(d)
Solution:
- From Hooke’s law
Tension in a string
and speed of sound in string
Therefore,
