1.

Blood flows through a main artery of area of cross section 2cm^2 with a speed of 0.25 ms^(-1). If it branches into several capillaries of total area of cross section 0.4 m^(2), the average speed of blood through each capillary is

Answer»

`0.25 MS^(-1)`
`1.25 XX 10^(-4) ms^(-1)`
`12.5 xx 10^(2) ms^(-1)`
`0.5 xx 10^(-4) ms^(-1)`

Answer :B


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