A) 2
B) \[=98\text{ }g\text{ }mo{{l}^{-1}}\]
C) \[{{H}_{2}}A\]
D) \[1.0\times {{10}^{-5}}\]
Correct Answer: D
Solution :
\[\int_{\sqrt{2}}^{x}{\frac{dt}{\sqrt{{{t}^{2}}-1}}=\frac{p}{2}}\] \[\Rightarrow \]\[[{{\sec }^{-1}}t]_{\sqrt{2}}^{x}=\frac{\pi }{2}\] \[\Rightarrow \]\[{{\sec }^{-1}}x-\frac{\pi }{4}=\frac{\pi }{2}\] \[\Rightarrow \]\[{{\sec }^{-1}}x=\frac{3\pi }{4}\] \[\Rightarrow \]\[x=-\sqrt{2}\]
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