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Equation of Continuity

In the given ...

Question

In the given figure, the velocity $v_{3}$ will be

A

2 m/s

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B

4 m/s

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C

1 m/s

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D

3 m/s

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Solution

The correct option is C $1 m/s$
From equation of continuity $A_{1} V_{1} = A_{2} V_{2} + A_{3} v_{3}$
$∴ v_{3} = \frac{A_{1} V_{1} - A_{2} V_{2}}{A_{3}}$
$v_{3} = \frac{(0.2 \times 4) - (0.2 \times 2)}{0.4}$
$v_{3} = 1 m/s$

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Equation of Continuity

Standard XI Physics

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