If the height of the mercury column is to decrease by 1 cm, what should be the corresponding change in the altitude ?

If the length of the mercury column in a mercury barometer is 76 cm, what is the equivalent height of the water column ?

A berometer correctlu reads the atmospheric pressure as 76cm of mercury. Water droplets are slowly introduced into the barometer tube by a dropper. The height of the mercury column first decreases and then become constant. If the saturation vapour pressure at the atmospheric tgemperature is 0.80cm of mercury, find the height if the mercury column when it reaches its minimum value.

What will be the height of mercury column in a barometer it it is taken to the moon?

The perimeters of two similar triangles are 30 cm and 20 cm . If one altitude of the former triangle is 12 cm , then the length of the corresponding altitude of the latter triangle is

The height of mercury which exerts the same pressure as 20 cm of water column, is