the height of mercury in a fauilty barometer is 75 cm and the tube above mercury is 10 cm long.
Channel: Doubtnut
Date: 2021-11-10

the height of mercury in a fauilty barometer is 75 cm and the tube above mercury is 10 cm long. The correct barometer reading is 76  cm. when the faulty barometer reads 74  cm, find the true barometer reading .