A mercury barometer is defective. When an accurate barometer reads `770` mn, the defective one reads `760` mn. When the accurate one reads `750` mn, the defective one reads `742` mn. Then
The reading of the accurate barometer, when defective are reads `752`mm is

A mercury barometer is defective. When an accurate barometer reads 770 mn, the defective one reads 760 mn. When the accurate one reads 750 mn, the defective one reads 742 mn. Then The length of air coloumn when accurate barometer reads 770 mm is

A mercury barometer always reads less than actual pressure.

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 .

Why is the reading of a mercury barometer always less than actual pressure?

A barometer is faulty . When the true barometer reading are 73 cm and 75 cm of Hg , the faulty barometer reads 69 cm and 70 cm respectively (i) What is the total length of the barometer tube? (ii) What is the reading when the faulty barometer reads 69.5 cm? (iii) What is the faulty barometer reading when the true barometer reads 74 cm?

A barometer is faulty . When the true barometer reading are 73 cm and 75 cm of Hg , the faulty barometer reads 69 cm and 70 cm respectively (i) What is the total length of the barometer tube? (ii) What is the reading when the faulty barometer reads 69.5 cm? (iii) What is the faulty barometer reading when the true barometer reads 74 cm?

A barometer is faulty . When the true barometer reading are 73 cm and 75 cm of Hg , the faulty barometer reads 69 cm and 70 cm respectively (i) What is the total length of the barometer tube? (ii) What is the reading when the faulty barometer reads 69.5 cm? (iii) What is the faulty barometer reading when the true barometer reads 74 cm?