A) 4
B) 7
C) 6
D) 5
Correct Answer: C
Solution :
\[f=(2n-1)\,\frac{v}{4\ell }\] \[\frac{v}{4\,\ell }=\,1500\] \[f=\left( 2n-1 \right)\times 1500\] \[{{f}_{max}}\] for audible frequency = 20,000 \[(2n-1)\times 1500<20,000\] \[2n-1<\frac{200}{15}\] \[2n-1<\frac{40}{3}\] \[2n-1<13.33\] \[2n<14.33\] \[n<7.16\] \[n=7\] Number of overtone \[=n-1=7-1=6\]You need to login to perform this action.
You will be redirected in
3 sec