Questions
A string 2 m long and fixed at its ends is driven by a 240 Hz vibrator. The string vibrates in its third harmonic mode. The speed of the wave and its fundamental frequency is
detailed solution
Correct option is D
For third harmonic, f= 3v2L ⇒3V2l=240 ⇒3×V2×2=240 ⇒V=320 m/sec Fundamental frequency =V2l=3202×2 = 80 HzTalk to our academic expert!
Similar Questions
A wire having a linear density of 5 g/m is stretched between two rigid supports with a tension of 450 N. It is observed that the wire resonates at a frequency of 420 Hz. The next highest frequency at which the same wire resonates is 490 Hz. Find the length of the wire. (in m)
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