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If the heart pushes 1 cc of blood in one...

If the heart pushes 1 cc of blood in one second under pressure 20000 N/m 2 the power of heart is

A

0.02 W

B

400 W

C

`5 xx 10^(-10) W `

D

0.2 W

Text Solution

Verified by Experts

The correct Answer is:
A
`V= 1 cc = 10^(-6) m^5`
`P=F/A = 20000 N//m^2`
Power `= ("Work done")/("Time") = ("Pressure" xx "Change in volume")/("Time")`
`= 20000 xx10^(-6) = 0.02W`
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