A) \[\frac{({{\rho }_{A}}+{{\rho }_{0}})}{({{\rho }_{A}}-{{\rho }_{0}})}\]
B) \[\frac{({{\rho }_{A}}+2{{\rho }_{0}})}{({{\rho }_{A}}-2{{\rho }_{0}})}\]
C) \[\frac{{{\rho }_{A}}}{{{\rho }_{A}}}\]
D) \[\frac{\left( {{\rho }_{A}}+\frac{1}{2}{{\rho }_{0}} \right)}{\left( {{\rho }_{A}}-\frac{1}{2}{{\rho }_{0}} \right)}\]
Correct Answer: A
Solution :
Maximum pressure at closed end will be atmospheric pressure adding with acoustic wave pressure So \[{{\rho }_{\max }}={{\rho }_{A}}+{{\rho }_{0}}\] and \[{{\rho }_{\min }}={{\rho }_{A}}-{{\rho }_{0}}\] Thus \[\frac{{{\rho }_{\max }}}{{{\rho }_{\min }}}=\frac{{{\rho }_{A}}+{{\rho }_{0}}}{{{\rho }_{A}}-{{\rho }_{0}}}\]You need to login to perform this action.
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