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The height of mercury barometer is h whe...

The height of mercury barometer is h when the atmospheic pressure is `10^(5)Pa`. The pressure at x in the shown diagram is

A

`10^(5)Pa`

B

`0.8xx10^(5)Pa`

C

`0.2xx10^(5)Pa`

D

`120xx10^(5)Pa`

Text Solution

Verified by Experts

The correct Answer is:
B
`h rho g=10^(5)Pa` (given)
`:. p_(x)=(h+(h)/(5)) rho g=0.8 h rhog`
`=0.8xx10^(5)Pa`.
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