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
Verified Correct Answer: B.
Physical Principles & Numerical Solution
At 77cm Hg, A.P = \(\frac{75.0 \times 72.0}{72.6} = 74.38\)
Source: Myschool Past Questions Archive (Record #34325)