A bubble of a gas released at the botton of a lake increases to eight times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m height, the depth of the lake is

A bubble of a gas released at the botton of a lake increases to eight

1.	A bubble of a gas released at the botton of a lake increases to eight times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m height, the depth of the lake is
Answer» <html><body><p>80 m<br/>90 m<br/>40 m<br/>70 m</p>Solution :As <a href="https://interviewquestions.tuteehub.com/tag/volume-728707" style="font-weight:bold;" target="_blank" title="Click to know more about VOLUME">VOLUME</a> of the bubble at the surface becomes <a href="https://interviewquestions.tuteehub.com/tag/8-336412" style="font-weight:bold;" target="_blank" title="Click to know more about 8">8</a> times, pressure at the bottom of the lake is 8 times the pressure at the surface. As pressure on the surface =1 atm., pressure at the bottom =8 atm. Thus, pressure due to depth of the lake =7 atm=70 m of <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a>.</body></html>