See this question.
The Attempt at a Solution
I think P_atm=P_gas.
I think so because for the two liquids(oil and Hg) to be in equilibrium the net force on them should be zero.
And,since they are not getting displaced anywhere from their position.So,they are in equilibrium.Hence,the force exerted by atmosphere from upward should be equal to the force exerted by the Gas from downward.
But,if I solve the question using this concept,I get wrong answer every time.
Can you please tell me where is my this logic wrong?
I will be thankful for help!
Note:English is my second language.
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