A student set up the potometer shown below to measure the rate of transpiration of a leafy shoot.
The capillary tube of the potometer has an internal diameter of 0.8 mm. Over a period of 15 minutes15\text{ minutes}15 minutes, the student recorded that the air bubble moved a distance of 45 mm along the scale.
What is the rate of water uptake by this shoot, rounded to two decimal places?
(Take π≈3.142\pi \approx 3.142π≈3.142)
6.03 mm3 min−16.03\text{ mm}^3\text{ min}^{-1}6.03 mm3 min−1
1.51 mm3 min−11.51\text{ mm}^3\text{ min}^{-1}1.51 mm3 min−1
7.54 mm3 min−17.54\text{ mm}^3\text{ min}^{-1}7.54 mm3 min−1
3.77 mm3 min−13.77\text{ mm}^3\text{ min}^{-1}3.77 mm3 min−1