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Standard VII

Physics

Measurement of Volume

A 1.0 hp moto...

Question

A 1.0 hp motor pumps out water from a well of depth and fills a water tank of volume 2238 litres at a height of 10 m from the ground. The running time of the motor to fill the empty water tank is

5 minutes

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10 minutes

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15 minutes

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20 minutes

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Solution

The correct option is C 15 minutes
P = $\frac{m g h}{t}$
$\Rightarrow$ 746 = $\frac{2238 \times 10 \times 30}{t}$
$\Rightarrow$ t = 900 s = 15 minutes

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A 1.0 hp motor pumps out water from a well of depth and fills a water tank of volume 2238 litres at a height of 10 m from the ground. The running time of the motor to fill the empty water tank is

The correct option is C 15 minutesP = mght ⇒ 746 = 2238×10×30t ⇒ t = 900 s = 15 minutes

The correct option is C 15 minutes
P = $\frac{m g h}{t}$
$\Rightarrow$ 746 = $\frac{2238 \times 10 \times 30}{t}$
$\Rightarrow$ t = 900 s = 15 minutes