A sonometer wire of linear density 0.08kg m -1 subjected to a tension of 800N...
PHYSICS
WAEC 2003
A sonometer wire of linear density 0.08kg m-1 subjected to a tension of 800N is plucked. Calculate the speed of a pulse which moves from one end of the wire to the other
- A. 179.0ms-1
- B. 100.0ms-1
- C. 15.8ms-1
- D. 8.0ms-1
Correct Answer: B. 100.0ms-1
Explanation
v = \(\sqrt{\frac{T}{m}} = \sqrt{\frac{800}{0.08}} = 100\)m/s
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