Q.
If the atmospheric pressure is 76cm of mercury at what depth of water the pressure will become 5 atmospheres nearly.
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a
1030cm
b
2130 cm
c
3130 cm
d
4130 cm
answer is D.
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Detailed Solution
5P0=P0+hdwg⇒4P0=hdwg h=4P0dwg=4×1.013×105103×9.8=4130 cm
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