A faulty barometer tube is 90 cm long and it contains some air above mercury. The reading is 74.5 cm when the true atmospheric pressure is 76 cm. What will be the true atmopsheric pressure if the reading on this barometer is 74 cm? (H = 10m of water column)

A faulty barometer tube is 90 cm long and it contains some air above m

1.	A faulty barometer tube is 90 cm long and it contains some air above mercury. The reading is 74.5 cm when the true atmospheric pressure is 76 cm. What will be the true atmopsheric pressure if the reading on this barometer is 74 cm? (H = 10m of water column)
Answer» <html><body><p>73.25 cm<br/>75.45 cm<br/>78.75 cm<br/>80.25 cm</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html>