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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
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Correct Answer: Option C
Explanation
In strings, \(\lambda\) = 2L

V = F\(\lambda\)

= 200 x 2 x 0.5

= 200ms-1
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