A wire of length 400cm is stretched between two fixed points. When plucked, its fundamental frequency is 150Hz. Calculate the speed of the wave produced.

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A. 250ms‾¹
B. 625ms‾¹
C. 1200ms‾¹
D. 1500ms‾¹

Correct Answer: Option C

Explanation

The fundamental frequency (f0) = v/2l

f0=150Hz; l=400cm=4m

150=v/(2×4)

v=150×8=1200ms−1

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