A) 21
B) 43
C) 86
D) 129
Correct Answer: B
Solution :
Wavelength of sound, \[\lambda =\frac{v}{n}=\frac{344}{256}m\] So, distance travelled by the sound in 32 vibrations is \[s=32\lambda \] \[=32\times \frac{344}{256}=43\,m\]You need to login to perform this action.
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