Equal mass of three liquids are kept in three identical cylindrical vessels $$A$$$$B$$ and $$C$$. The densities are $$\rho_A,~\rho_B,~\rho_C$$ with $$\rho_A<\rho_B<\rho_C$$ . The force on the base will be:

 1 maximum in vessel $$A$$ 2 maximum in vessel $$B$$ 3 maximum in vessel $$C$$ 4 equal in all the vessels

Subtopic:  Pressure |
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A tank full of water is placed in an elevator. The elevator accelerates upward. The water pressure at the bottom of the tank:
 1 decreases 2 increases 3 remains unchanged 4 first increases and then decreases
Subtopic:  Pressure |
77%
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Two copper vessels $$A$$ and $$B$$ have the same base area but are of different shapes. $$A$$ takes twice the volume of water that $$B$$ requires to fill up to a particular common height. Then the correct statement among the following is:
 1 pressure on the base area of vessels $$A$$ and $$B$$ is same. 2 pressure on the base area of vessels $$A$$ and $$B$$ is not same. 3 both vessels $$A$$ and $$B$$ weigh the same. 4 vessel $$B$$ weighs twice that of $$A$$.
Subtopic:  Pressure |
69%
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NEET - 2022
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Toricelli’s barometer used mercury. Pascal duplicated it using French wine of density $$984~\text{kg/m}^3.$$ The height of the wine column for normal atmospheric pressure is:
1. $$11.5~\text{m}$$
2. $$10.5~\text{m}$$
3. $$9.00~\text{m}$$
4. $$15.0~\text{m}$$

Subtopic:  Pressure |
70%
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A hydraulic automobile lift is designed to lift cars with a maximum mass of $$3000$$ kg. The area of the cross-section of the piston carrying the load is $$425$$ cm2. What maximum pressure would the smaller piston have to bear?
1. $$3.12\times10^{5}$$ Pa
2. $$1.01\times10^{5}$$ Pa
3. $$2.94\times10^{5}$$ Pa
4.
$$6.92\times10^{5}$$ Pa

Subtopic:  Pressure |
79%
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A small sphere of density $$\rho$$ is completely submerged in a liquid of density $$3\rho$$ and released. The magnitude of its acceleration just after release equals:
1. $$g$$
2. $$\frac g3$$
3. $$2g$$
4. $$3g$$
Subtopic:  Archimedes' Principle |
62%
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A wooden block with a coin placed on its top, floats in water as shown in the figure.

The distances $$\mathrm{l}$$ and $$\mathrm{h}$$ are shown in the figure. After some time, the coin falls
into the water. Then,

 (a) $$\mathrm{l}$$ decreases (b) $$\mathrm{h}$$ decreases (c) $$\mathrm{l}$$ increases (d) $$\mathrm{h}$$ increases

Choose the correct alterative/s:

 1 (b), (c) 2 (a), (d) 3 (c), (d) 4 (a), (b)

Subtopic:  Archimedes' Principle |
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Two non-mixing liquids of densities $$\rho$$ and $$n\rho$$ $$(n>1)$$ are put in a container. The height of each liquid is $$h.$$ A solid cylinder of length $$L$$ and density $$d$$ is put in this container. The cylinder floats with its axis vertical and length $$rL~(r<1))$$ in the denser liquid. The density $$d$$ is equal to:
1. $$[2+(n+1)r ]\rho$$
2. $$[2+(n-1)r] \rho$$
3. $$[1+(n-1)r] \rho$$
4. $$[1+(n+1)r ]\rho$$

Subtopic:  Archimedes' Principle |
65%
From NCERT
NEET - 2016
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Streamline flow is more likely for liquids with,

 (a) high density. (b) high viscosity. (c) low density. (d) low viscosity.

Choose the correct option:

 1 (a), (b) 2 (c), (d) 3 (b), (c) 4 (a), (d)
Subtopic:  Types of Flows |
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Which of the following diagrams does not represent a streamline flow?

 1 2 3 4
Subtopic:  Types of Flows |
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