- 1(current)
Q. No.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 |
| 1. | decreases |
| 2. | increases |
| 3. | remains unchanged |
| 4. | first increases and then decreases |
| 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 \(A\). |
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. \(15.0~\text{m}\)
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
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Q. No.
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