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

PHYSICS
WAEC 2004

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

  • A. 79.4cm Hg
  • B. 74.38cm Hg
  • C. 74.2cm Hg
  • D. 69.4cm Hg

Correct Answer: B. 74.38cm Hg

Explanation

At 77cm Hg, A.P = \(\frac{75.0 \times 72.0}{72.6} = 74.38\)



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