The height of mercury which exerts the s...

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

1.47 cm

14.8 cm

148 cm

none of these

Text Solution

Verified by Experts

The correct Answer is:

Pressure = hdg
`:.` Let height of mercury be h cm.
Then `h xx 13.6 xx g = 20 xx 1 xx g`
`rArr h = (20)/(13.6)= 1.47 cm`

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