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

By: |Published on: May 21|Categories: Physics WAEC| 0 comments

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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