An inverted tube barometer is kept on a lift with a moving downward with a deceleration $\alpha $ . The density of mercury is $\rho$ and acceleration due to gravity is $g$ . If the atmospheric pressure be $P_0$ then
An inverted tube barometer is kept on a lift with a moving downward with a deceleration $\alpha $ . The density of mercury is $\rho$ and acceleration due to gravity is $g$ . If the atmospheric pressure be $P_0$ then
- A
Height of the mercury column in the lift will be $ \frac{{{P_0}}}{{\rho \left( {g + a} \right)}}$
- B
Height of the mercury column in the lift will be $\frac{{{P_0}}}{{\rho \left( {g - a} \right)}}$
- C
Height of the mercury column in the lift will be $\frac{{{P_0}}}{{\rho g}}$
- D
Height of the mercury column in the lift will be $\frac{{{P_0}}}{{\rho a}}$
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- [NEET 2022]
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