00:01
The initial flow rate q1 is given as 100 centimeter cube per minute and the pressure, blood pressure is given as 100 millimeter of mercury.
00:18
Now we have to find out the flow rate if the internal radius is reduced by 20%.
00:24
So, let us say if the initial radius, let us assume that initial radius is r1.
00:36
So, now it is given that the final radius r2 is reduced by 20%.
00:41
So, we have r1 minus 20 % of r1.
00:48
So, now when we solve it, it will be r1 minus 20 over 100 r1 or we can say r1 minus 0 .2 r1 or it will be 0 .8 r1.
01:03
So, we have r2 is equals to 0 .8 r1.
01:10
Now we know that the flow rate, the flow rate q is given by pi rho r to the power 4 over 8 eta l...