Question

Select One Correct Option from the following: A student is performing an experiment using a resonance column and atuning fork of frequency $244s^{-1}$. He is told that the air in the tube has beenreplaced by another gas (assume that the column remains filled with thegas). If the minimum height at which resonance occurs is $(0.350\pm 0.005 )$ m,the gas in the tube is [Given: $\sqrt{167RT}=640 J^{1/2} mol^{-1/2}, \sqrt{140RT} =590 J^{1/2} mol^{-1/2} .$. The molar massesMin grams are given in the options.Take the value of $\sqrt{\frac{10}{M} }$ for each gas as given there.]
(A) Neon $(M=20, \sqrt{\frac{10}{20} }=\frac{7}{10})$
(B) Nitrogen $(M=28, \sqrt{\frac{10}{28} }=\frac{3}{5} )$
(C) Oxygen $(M= 20, \sqrt{\frac{10}{32} }=\frac{9}{16})$
(D) Argon $(M=36, \sqrt{\frac{10}{36} }=\frac{17}{32})$

Answer 1

d option is correct.
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Answer 2

(D) Argon $(M=36, \sqrt{\frac{10}{36} }=\frac{17}{32})$