Home Physics Work, Energy, Power and Collision Power, Motion in Vertical Circle The human heart discharges 80 ml of blood at…
Physics Work, Energy, Power and Collision Power, Motion in Vertical Circle MCQ (Single Correct)

The human heart discharges 80 ml of blood at each beat against pressure of 0.1 mm of Hg. What is the power of the heart assuming that the pulse frequency is 75 beats per minute? (Density of mercury )

A
1.33 watt
B
121 watt
C
1330 k watt
D
None

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Text Solution

Verified by Experts
The correct answer is:
A

Volume of blood discharge/ beat

Pressure of Hg

Total work done in 75 beat = 75 PV

Power

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