The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be $13.6 \times 10^{3} k g / m^{3}$ and $g = 10 m / s^{2}$ then the power of heart in watt is:

1.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.7

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

2.35

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 1.7
Power: $P = \to F \cdot \to v = P A v = ρ g h \times (v o l u m e / s e c) = (13.6 \times 10^{3}) \times 10 \times (150 \times 10^{- 3}) \times (\frac{5 \times 10^{- 3}}{60}) = 1.7 W a t t$

Suggest Corrections

Similar questions

The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 $m m$ of mercury. If the density of mercury is $13.6 \times 10^{3} k g / m^{3}$ and $g = 10 m / s^{2}$ , then the power of heart in Watts is

Q. The heart of a man pumps

5 l i t r e s

of blood through the arteries per minute at a pressure of

150 m m

of mercury. If the density of mercury be

13.6 \times 10^{3} k g / m^{3}

and

g = 10 m / s^{2}

then the power of heart in watt is

Q. The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150

m m

of mercury. If the density of mercury is

13.6 \times 10^{3} k g / m^{3}

and

g = 10 m / s^{2}

, then the power of heart in Watts is

Q. The heart of a man pumps

4000 c c

of blood through the arteries per minute at a pressure of 130 mm Hg. If the density of mercury is

13.6 \times 10^{3} k g / m^{3}

, what is the power of heart?

(g = 9.8 m / s^{2})

Q. The heart of a man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be 13.6×10^3 kg/m^3 and g=10 m/s^2. Then the power of heart watt is 1) 1.50 2) 1.70 3) 2.35 4) 3.0

Join BYJU'S Learning Program

The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be 13.6×103kg/m3 and g=10m/s2 then the power of heart in watt is:

The correct option is B 1.7Power: P=→F⋅→v=PAv=ρgh×(volume/sec)=(13.6×103)×10×(150×10−3)×(5×10−360)=1.7Watt

The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be $13.6 \times 10^{3} k g / m^{3}$ and $g = 10 m / s^{2}$ then the power of heart in watt is:

The correct option is B 1.7
Power: $P = \to F \cdot \to v = P A v = ρ g h \times (v o l u m e / s e c) = (13.6 \times 10^{3}) \times 10 \times (150 \times 10^{- 3}) \times (\frac{5 \times 10^{- 3}}{60}) = 1.7 W a t t$