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A faulty barometer reads 72.6cm Hg when the atmospheric pressure is 75.0cm Hg. ...

A faulty barometer reads 72.6cm Hg when the atmospheric pressure is 75.0cm Hg. Calculate the atmospheric pressure when the barometer reads 72.0cn Hg
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  • A 79.4cm Hg
  • B 74.38cm Hg
  • C 74.2cm Hg
  • D 69.4cm Hg
Correct Answer: Option B
Explanation:
At 77cm Hg, A.P = \(\frac{75.0 \times 72.0}{72.6} = 74.38\)

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