A wire is stretched between two points, 1 m apart. If the speed of the wave generated on plucking the wire is 200 ms\(^{-1}\), what is the minimum frequency which will resonate with the wire?
A
50 Hz
B
100 Hz
C
200 Hz
D
75 Hz
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
λ = 1 m; v = 200 ms\(^{-1}\); f = ?;
f = \(\frac{\text{v}{ λ}\) = \(\frac{200}{1}\) = 200 Hz
Source: WAEC / JAMB / NECO Classroom Archive (Record #76373)