TS EAMCET · Physics · Mechanical Properties of Fluids
Water is filled in a tank up to a height of 20 cm from the bottom of the tank. Water flows through a hole of area \(1 \mathrm{~mm}^2\) at its bottom. The mass of the water coming out from the hole in a time of 0.6 s is
(Density of water \(=1000 \mathrm{~kg} \mathrm{~m}^{-3}\) and acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )
- A 1.8 g
- B 1.2 g
- C 0.6 g
- D 2.4 g
Answer & Solution
Correct Answer
(B) 1.2 g
Step-by-step Solution
Detailed explanation
\(v = \sqrt{2gh} = \sqrt{2 \times 10 \times 0.2} = 2 \mathrm{~m/s}\) \(m = \rho Avt = 1000 \times 1 \times 10^{-6} \times 2 \times 0.6 = 1.2 \times 10^{-3} \mathrm{~kg} = 1.2 \mathrm{~g}\)
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