How much water- a pump of 2 kW can raise in one minute to a height of 10 m - Take g -10 m - s 2-A- 1000 litresB- 1200 litresC- 100 litresD- 2000 litres

The correct option is B 1200 litresP=wt Here, P=2kW=2000 W. w=mgh=m× 10× 10=2000×60 nbsp;(t=60 s). This gives, m=1200 kg Volume = 1200 litres, nbsp; as 1 ...

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Standard XII

Physics

Gravitational Potential Energy

How much wate...

Question

How much water, a pump of $2 k W$ can raise in one minute to a height of $10 m$ ? Take $g = 10 m / s^{2}$ .

1000 litres

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1200 litres

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100 litres

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2000 litres

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Solution

The correct option is B 1200 litres
$P = \frac{w}{t}$
Here, $P = 2 k W = 2000 W$ .
$w = m g h = m \times 10 \times 10 = 2000 \times 60$
$(t = 60 s)$ .
This gives, $m = 1200 k g$
Volume = $1200$ litres, as $1$ litre of water contains $1 k g$ of its mass.

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How much water, a pump of 2 kW can raise in one minute to a height of 10 m? Take g=10 m/s2 .

The correct option is B 1200 litresP=wt Here, P=2kW=2000 W. w=mgh=m×10×10=2000×60 (t=60 s). This gives, m=1200 kg Volume = 1200 litres, as 1 litre of water contains 1 kg of its mass.

How much water, a pump of $2 k W$ can raise in one minute to a height of $10 m$ ? Take $g = 10 m / s^{2}$ .

The correct option is B 1200 litres
$P = \frac{w}{t}$
Here, $P = 2 k W = 2000 W$ .
$w = m g h = m \times 10 \times 10 = 2000 \times 60$
$(t = 60 s)$ .
This gives, $m = 1200 k g$
Volume = $1200$ litres, as $1$ litre of water contains $1 k g$ of its mass.