A steel wire of length 0.50m is stretched between two fixed points and its fundamental...
PHYSICS
JAMB 1998
A steel wire of length 0.50m is stretched between two fixed points and its fundamental frequency is 200Hz. The speed of the wave in the wire is
- A. 100ms-1
- B. 120ms-1
- C. 200ms-1
- D. 250ms-1
Correct Answer: C. 200ms-1
Explanation
In strings, \(\lambda\) = 2L
V = F\(\lambda\)
= 200 x 2 x 0.5
= 200ms-1
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