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(D) The wavelength $\lambda$ is given by $\lambda = 2(\ell_2 - \ell_1) = 2(50 - 16) = 68 \ cm$. Thus,$A \rightarrow s$.The speed of sound $v = f \lamb

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$A \rightarrow s, B \rightarrow t, C \rightarrow r, D \rightarrow p, E \rightarrow q$

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(D) The wavelength $\lambda$ is given by $\lambda = 2(\ell_2 - \ell_1) = 2(50 - 16) = 68 \ cm$. Thus,$A ightarrow s$.The speed of sound $v = f \lambda = 500 \ Hz 	imes 0.68 \ m = 340 \ m/s$. Thus,$C ightarrow r$.The end correction $e$ is given by $e = \frac{\ell_2 - 3\ell_1}{2} = \frac{50 - 3(16)}{2} = \frac{50 - 48}{2} = 1 \ cm$. Thus,$D ightarrow p$.The height of the liquid column at the $II$ resonance is the total length minus the air column length: $120 \ cm - 50 \ cm = 70 \ cm$. Thus,$B ightarrow t$.The minimum level of the liquid column at resonance corresponds to the longest air column possible,which is the $IV$ resonance at $118 \ cm$. The liquid level is $120 \ cm - 118 \ cm = 2 \ cm$. Thus,$E ightarrow q$.Matching the results: $A ightarrow s, B ightarrow t, C ightarrow r, D ightarrow p, E ightarrow q$.

List-$I$	List-$II$
$A$. Wavelength of sound $(cm)$	$p$. $1$
$B$. Height of liquid column at $II$ resonance $(cm)$	$q$. $2$
$C$. Speed of sound $(m/s)$	$r$. $340$
$D$. End correction $(cm)$	$s$. $68$
$E$. Minimum level of liquid column at resonance $(cm)$	$t$. $70$

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