A fauly barometer reads 71.12cm and 76.20cm when a true barometer reads 72.39cm and 78.74cm, respectively. Find the ture reading when the faulty barometer stands at 73.66cm.

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?

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 .

A mercury thermoeter read 80^(@)C when the mercury is at 5.2cm mark and 60^(@) when the mercury is at 3.9cm mark. Find the temperature when the mercury level is at 2.6cm mark.

The length , breadth and height of a cuboidal shaped box of medicine is 20 cm , 12 cm and 10 cm respectively . Find the total surface area of the box .

The radii of the circular faces of the frustum are 20 cm and 12 cm respectively . If the height of the frustum is 15 cm , then find its slant height.

A barometer kept in an elevator reads 76 cm when it is at rest. If the elevator goes up with increasing speed, the reading will be

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

Barometer is constructed using liquid . What would be height of liquid column when mercury barometer reads 76cm

At the top of the mountain the temperature is -13^(@)C and the barometer reads 68 cm of Hg. At the bottom the temperature is 27^(@)C and the barometer reads 70 cm of Hg. What is the ratio of the densities of the air at the mountain to that the sea level?