A) \[54>x>36\]
B) \[36>x>18\]
C) \[18>x\]
D) \[x>54\]
Correct Answer: D
Solution :
\[\frac{V}{4\ell }=\frac{3V'}{4x}\] \[x=3\left( \frac{V'}{V} \right)\ell =\left( 54cm \right)\frac{V'}{V}\] As velocity of sound increases with temperature, V' > V \[\therefore \,\,\,x>54\,cm\]You need to login to perform this action.
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