1.

The density of the atmosphere at sea level is 1.29kg//m^(3) . Assume that it does not change with altitude . Then how high would the atmosphere extended ? (g=9.8ms^(-2))

Answer» <html><body><p></p>Solution :We use Eq.10.7 <br/> `pgh=1.29 kg m^-3 times 9.8 ms^2 times h m=1.01 times 10^5 Pa` <br/> `therefore h=7989 m=8km` <br/> In <a href="https://interviewquestions.tuteehub.com/tag/reality-620184" style="font-weight:bold;" target="_blank" title="Click to know more about REALITY">REALITY</a> the density of air decreases with <a href="https://interviewquestions.tuteehub.com/tag/height-1017806" style="font-weight:bold;" target="_blank" title="Click to know more about HEIGHT">HEIGHT</a>. So does the value of g. The atmospheric cover extends with decreasing pressure over 100km. we should also <a href="https://interviewquestions.tuteehub.com/tag/note-1125278" style="font-weight:bold;" target="_blank" title="Click to know more about NOTE">NOTE</a> that the <a href="https://interviewquestions.tuteehub.com/tag/sea-638310" style="font-weight:bold;" target="_blank" title="Click to know more about SEA">SEA</a> level atmospheric pressure is not always 760 nm of Hg. A drop in the Hg level by 10mm or more is a sign of an approaching <a href="https://interviewquestions.tuteehub.com/tag/storm-21158" style="font-weight:bold;" target="_blank" title="Click to know more about STORM">STORM</a>.</body></html>


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