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Physics Class 12th Mechanical Properties of Fluids Physics NCERT Exemplar Solutions Class 12th Chapter Eleven

Consider a cylindrical tank of radius 1m is filled with water. The top surface of water is at 15m front the bottom of the cylinder. There is a hole on the wall of a cylinder at a height of 5m from the bottom. A force of 5 × 10⁵N is applied an the top surface of water using a piston. The speed of ifflux from the hole will be:

(given atmospheric pressure P_A = 1.01 × 10⁵Pa, density of water $ρ_{w} = 1000 k g / m^{3}$ and gravitational acceleration g = 10m/s²)

Option 1 -

11.6 m/s

Option 2 -

10.8 m/s

Option 3 -

17.8 m/s

Option 4 -

14.4 m/s

10 Views | Posted 4 months ago

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1 Answer

Answered by

Vishal Baghel | Contributor-Level 10

2 months ago

Correct Option - 3

Detailed Solution:

$ρ_{ω} = 1000 k g / m^{3}$

G = 10 m/s²

Using bernaulli’s eqn

$\frac{5 \times 1 0^{5}}{π} + ρ g \times 10 = ρ_{0} + \frac{1}{2} ρ V_{e}^{2}$

$= \sqrt[]{318} ? 17.8 m / s$

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