Acceleration Due To Gravity

Q.

A barometer kept in a stationary elevator reads 76 cm. If the elevator starts accelerating up the reading will be

1. Zero

2. Equal to 76 cm

3. More than 76 cm

4. Less than 76 cm

Q. A tank is filled up to height $2H$ with a liquid and is placed on a platform of height $H$ from the ground. The distance $x$ from the ground is ${}^{\prime }{Z}^{\prime }H$ where a small hole is punched to get the maximum range $R$ then the value of ${}^{\prime }{Z}^{\prime }$ is

Q. A beaker containing a liquid of density $\rho$ moves up with an acceleration ${}^{\prime }{a}^{\prime }$. The pressure in the liquid at a depth $h$ below the free surface of the liquid is (consider atmospheric pressure to be $P_0$)

1. $P_0+h\rho g$
2. $P_0-h\rho (g-a)$
3. $P_0+h\rho (g+a)$
4. $P_0+2h\rho g\left(\frac{g+a}{g-a}\right)$

Q. A liquid is filled in an open vessel and vessel is accelerated horizontally with a constant acceleration $a$. Choose the correct statements for the given situation.

1. The maximum pressure is at the leftmost bottom corner.
2. Along a horizontal line within the liquid, as we move from left to right, the pressure decreases
3. The pressure at all the points on a line making an angle of ${\tan }^{-1}\left(\frac{a}{g}\right)$ with horizontal would be same
4. Along a horizontal line within the liquid, as we move from left to right, the pressure remains the same

Q. A beaker containing a liquid of density $\rho$ moves up with an acceleration ${}^{\prime }{a}^{\prime }$. The pressure in the liquid at a depth $h$ below the free surface of the liquid is (consider atmospheric pressure to be $P_0$)

1. $P_0+h\rho g$
2. $P_0-h\rho (g-a)$
3. $P_0+h\rho (g+a)$
4. $P_0+2h\rho g\left(\frac{g+a}{g-a}\right)$