Physics WAEC

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: Option B

B. 74.38cm Hg

Explanation

At 77cm Hg, A.P = (75.0×72.0)/72.6

=74.38

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6 years ago

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