What is a barometer ? How is a simple barometer constructed ?

How is the barometric height of a simple barometer affected if Its tube is pushed down into the trough of mercury?

How is the barometric height of a simple barometer affected if A drop of liquid is inserted inside the tube?

How is the barometric height of a simple barometer affected if Its tube is slightly tilted from vertical?

The space above the mercury in a simple barometer is called :

How is the barometric height of a simple barometer affected if (a) its tube is pushed down into the trough of mercury ? (b) its tube is slightly tilted from vertical ? (c ) a drop of liquid is inserted inside the tube ?

The empty space above mercury in a simple barometer is called "__________" vecuum.

The vertical height of mercury which a simple barometer can support at sea level is:

State two advantages of an aneroid barometer over a simple barometer.

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?

Water barometer is possible provided barometer tube is 9 m long.